Category: 415918-91-1

Formula: C36H30NO2P. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, is researched, Molecular C36H30NO2P, CAS is 415918-91-1, about Unprecedented catalytic enantioselective trapping of arene oxides with dialkylzinc reagents. Author is Bertozzi, Fabio; Crotti, Paolo; Del Moro, Federica; Feringa, Ben L.; Macchia, Franco; Pineschi, Mauro.

The first catalytic enantioselective trapping of sym. and racemic arene oxides with organometallic reagents is reported. Benzene oxide (7-oxabicyclo[4.1.0]hepta-2,4-diene) is in equilibrium with oxepin. Catalyst system included copper ditriflate and (11bR)-N,N-bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine. Thus, the reaction of 7-oxabicyclo[4.1.0]hepta-2,4-diene with dimethylzinc gave (1S,6S)-6-methyl-2,4-cyclohexadien-1-ol in 93% enantiomeric excess and 4-methyl-2,5-cyclohexadien-1-ol. Reactions of 2,3-dihydro-3a,7a-epoxy-1H-indene and 1a,7b-dihydronaphth[1,2-b]oxirene were also investigated.

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Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine(SMILESS: C[C@@H](N(P1OC2=CC=C3C=CC=CC3=C2C4=C5C=CC=CC5=CC=C4O1)[C@@H](C6=CC=CC=C6)C)C7=CC=CC=C7,cas:415918-91-1) is researched.Synthetic Route of C17H19N3O2S. The article 《Stereodivergent Synthesis of Enantioenriched γ-Butyrolactones Bearing Two Vicinal Stereocenters Enabled by Synergistic Copper and Iridium Catalysis》 in relation to this compound, is published in Angewandte Chemie, International Edition. Let’s take a look at the latest research on this compound (cas:415918-91-1).

By virtue of a fundamentally new reaction model of azomethine ylide serving as a two-atom synthon, the first example of stereodivergent preparation of [(3R,4S)/(3S,4R)/(3R,4R)/(3S,4S)]-γ-butyrolactones I (R = Me, benzyl, allyl, 2-ethoxycarbonylethyl, etc.) via synergistic Cu/Ir-catalyzed asym. cascade allylation/lactonization is presented, and all four stereoisomers of I bearing two vicinal stereocenters are accessible with excellent diastereoselective and enantioselective control. The chiral IrIII- π-allyl intermediate was separated and characterized to understand the origin of the regio- and stereoselectivity of the initial C-C bond formation process. Control experiments shed some light on the catalyst/substrate and catalyst/catalyst interactions in this dual catalytic system to rationalize the related kinetic/dynamic kinetic resolution process with different catalyst combinations. The enantioenriched γ-butyrolactone products I were converted into an array of structurally complex chiral mols. and organocatalysts that were otherwise inaccessible.

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Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Computed Properties of C36H30NO2P. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, is researched, Molecular C36H30NO2P, CAS is 415918-91-1, about Rapid Access to Spirocyclic Oxindole Alkaloids: Application of the Asymmetric Palladium-Catalyzed [3 + 2] Trimethylenemethane Cycloaddition. Author is Trost, Barry M.; Bringley, Dustin A.; Zhang, Ting; Cramer, Nicolai.

The marcfortines are complex secondary metabolites that show potent anthelmintic activity and are characterized by the presence of a bicyclo[2.2.2]diazaoctane fused to a spirooxindole. Herein, we report the synthesis of two members of this family. The synthesis of marcfortine B, I (R = H), utilizes a carboxylative trimethylenemethane (TMM) cycloaddition to establish the spirocyclic core, followed by an intramol. Michael addition and oxidative radical cyclization to access the strained bicyclic ring system. In addition, the first asym. synthesis of (-)-marcfortine C, I (R = Me), is described. The key step involves a cyano-substituted TMM cycloaddition, which proceeds in nearly quant. yield with high diastereo- and enantioselectivity. The resulting chiral center was used to establish all remaining stereocenters in the natural product.

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Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Liu, Ze-Shui; Li, Wen-Ke; Kang, Tai-Ran; He, Long; Liu, Quan-Zhong published the article 《Palladium-Catalyzed Asymmetric Cycloadditions of Vinylcyclopropanes and in Situ Formed Unsaturated Imines: Construction of Structurally and Optically Enriched Spiroindolenines》. Keywords: indole aryl sulfonyl cyclopropane vinyl palladium asym cycloaddition catalyst; spiroindolenine stereoselective preparation.They researched the compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine( cas:415918-91-1 ).Quality Control of (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:415918-91-1) here.

A palladium-catalyzed (3 + 2) cycloaddition of vinyl cyclopropane and α,β-unsaturated imines generated in situ from aryl sulfonyl indoles is reported. The reaction proceeds with high diastereoselectivity to provide the optically enriched spirocyclopentane-1,3′-indolenines, e.g., I, in up to 74% yield and with up to 97% ee, which contains an all-carbon quaternary center and two tertiary stereocenters. The reaction involves a first conjugate addition of the carbon anion of zwitterionic π-allylpalladium complex from vinyl cyclopropane to the in situ formed unsaturated imine followed by a palladium-catalyzed intramol. C3-allylation of indole.

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Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Recommanded Product: 415918-91-1. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, is researched, Molecular C36H30NO2P, CAS is 415918-91-1, about Palladium-Catalysed Carboborylation for the Synthesis of Borylated Indanes. Author is Zieba, Andrzej; Hooper, Joel F..

A palladium-catalyzed carboborylation reaction for the synthesis of borylated indanes has been investigated. This reaction proceeds in good yields with an achiral catalyst, and is tolerant of substitution on the aryl ring, although sensitivity to the substitution of the alkene was observed Initial studies towards an enantioselective version of this reaction were undertaken, identifying phosphoramidites as a promising ligand class. This allowed for the synthesis of chiral indane and indolone products with moderate levels of enantioselectivity.

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Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

COA of Formula: C36H30NO2P. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, is researched, Molecular C36H30NO2P, CAS is 415918-91-1, about Palladium-Catalyzed Asymmetric [8+2] Dipolar Cycloadditions of Vinyl Carbamates and Photogenerated Ketenes. Author is Zhang, Qun-Liang; Xiong, Qin; Li, Miao-Miao; Xiong, Wei; Shi, Bin; Lan, Yu; Lu, Liang-Qiu; Xiao, Wen-Jing.

Higher-order cycloadditions, particularly [8+2] cycloadditions, are a straightforward and efficient strategy for constructing significant medium-sized architectures. Typically, configuration-restrained conjugated systems were used as 8π-components for higher-order concerted cycloadditions However, for this reason, 10-membered monocyclic skeletons have never been constructed via catalytic asym. [8+2] cycloaddition with high peri- and stereoselectivity. Here, the authors accomplished an enantioselective [8+2] dipolar cycloaddition via the merger of visible-light activation and asym. palladium catalysis. This protocol provides a new route to 10-membered monocyclic architectures bearing chiral quaternary stereocenters with high chemo-, peri-, and enantioselectivity. The success of this strategy relied on the facile in situ generation of Pd-containing 1,8-dipoles and their enantioselective trapping by ketene dipolarophiles, which were formed in situ via a photo-Wolff rearrangement.

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Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine(SMILESS: C[C@@H](N(P1OC2=CC=C3C=CC=CC3=C2C4=C5C=CC=CC5=CC=C4O1)[C@@H](C6=CC=CC=C6)C)C7=CC=CC=C7,cas:415918-91-1) is researched.SDS of cas: 693-67-4. The article 《An Ir/Zn Dual Catalysis for Enantio- and Diastereodivergent α-Allylation of α-Hydroxyketones》 in relation to this compound, is published in Journal of the American Chemical Society. Let’s take a look at the latest research on this compound (cas:415918-91-1).

An Ir/Zn dual catalysis has been developed for the enantio- and diastereodivergent α-allylation of unprotected α-hydroxyketones under mild conditions, in the absence of any addnl. base. The cooperative action of a chiral iridium complex derived from phosphoramidites and a chiral Zn-ProPhenol complex is most likely responsible for its high reactivity, excellent enantioselectivity (up to >99% ee), and good diastereoselectivity (up to >20:1 dr). All four product stereoisomers could be prepared from the same set of starting materials and under identical conditions by simple selection of appropriate catalyst combinations.

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Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, is researched, Molecular C36H30NO2P, CAS is 415918-91-1, about Regio- and Enantioselective Iridium-Catalyzed Intermolecular Allylic Etherification of Achiral Allylic Carbonates with Phenoxides, the main research direction is ether aromatic allylic enantioselective regioselective preparation; carbonate allylic achiral stereoselective regioselective allylic etherification phenoxide; iridium phosphoramidite complex enantioselective regioselective intermol allylic etherification catalyst.SDS of cas: 415918-91-1.

An enantioselective and regioselective iridium-catalyzed allylic etherification is described. The reaction of sodium and lithium phenoxides R1OM (R1 = Ph, 2-MeC6H4, 4-MeOC6H4, 3-Me2NC6H4, etc.; M = Li, Na) with achiral allylic carbonates (E)-R2CH:CHCH2OCO2R3 (R2 = Pr, Ph, 2-MeOC6H4, 4-MeOC6H4; R3 = Me, Et) in the presence of 2 mol % of an iridium-phosphoramidite complex provides chiral allylic aryl ethers R2CH(OR1)CH:CH2 in high yields and with excellent levels of regio- and enantioselectivity. Lithium phenoxides containing a single substituent at an ortho, meta, or para position as well as sterically hindered phenoxides were tolerated. Reactions in THF displayed the most suitable balance of rate, regio-, and enantioselectivity.

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Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Ir/Cu dual catalysis: Enantio- and diastereodivergent access to α,α-disubstituted α-amino acids bearing vicinal stereocenters, published in 2018-02-14, which mentions a compound: 415918-91-1, Name is (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, Molecular C36H30NO2P, COA of Formula: C36H30NO2P.

We describe a fully stereodivergent synthesis of a range of α,α-disubstituted α-amino acids via an Ir/Cu-catalyzed α-allylation of readily available imine esters. The introduction of a Cu-Phox complex-activated imine ester into the chiral iridium-catalyzed allylic allylation process is crucial for its high reactivity and excellent enantio- and diastereoselectivity (up to >99% ee and >20:1 dr). Importantly, the two chiral catalysts allow for full control over the configuration of the stereocenters, affording all stereoisomers of the desired products. The utility of this methodol. was demonstrated by synthesizing dipeptides and analogs of bioactive mols. in a stereodivergent manner.

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Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Secondary Interactions or Ligand Scrambling? Subtle Steric Effects Govern the Iridium(I) Coordination Chemistry of Phosphoramidite Ligands, published in 2010, which mentions a compound: 415918-91-1, Name is (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, Molecular C36H30NO2P, Name: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine.

The like and unlike isomers of phosphoramidite (P*) ligands are found to react differently with iridium(I), which is a key to explaining the apparently inconsistent results obtained by us and other research groups in a variety of catalytic reactions. Thus, the unlike diastereoisomer (aR,S,S)-[IrCl(cod)(1a)] (2a; cod = 1,5-cyclooctadiene, 1a = (aR,S,S)-(1,1′-binaphthalene)-2,2′-diyl bis(1-phenylethyl)phosphoramidite) forms, upon chloride abstraction, the monosubstituted complex (aR,S,S)-[Ir(cod)(1,2-η-1a,κP)]+ (3a), which contains a chelating P* ligand that features an η2 interaction between a dangling Ph group and iridium. Under analogous conditions, the like analog (aR,R,R)-1a’ gives the disubstituted species (aR,R,R)-[Ir(cod)(1a’,κP)2]+ (4a’) with monodentate P* ligands. The structure of 3a was assessed by a combination of x-ray and NMR spectroscopic studies, which indicate that it is the configuration of the binaphthol moiety (and not that of the dangling benzyl N groups) that determines the configuration of the complex. The effect of the relative configuration of the P* ligand on its iridium(I) coordination chem. is discussed in the context of our preliminary catalytic results and of apparently random results obtained by other groups in the iridium(I)-catalyzed asym. allylic alkylation of allylic acetates and in rhodium(I)-catalyzed asym. cycloaddition reactions. Further studies with the unlike ligand (aS,R,R)-(1,1′-binaphthalene)-2,2′-diyl bis{[1-(1-naphthalene-1-yl)ethyl]phosphoramidite} (1b) showed a yet different coordination mode, i.e., the η4-arene-metal interaction in (aS,R,R)-[Ir(cod)(1,2,3,4-η-1b,κP)]+ (3b).

As far as I know, this compound(415918-91-1)Name: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.

Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics