Higham, Lee J. published the artcileP-chirogenic phosphines. MOP/diPAMP hybrids, their oxide crystal structures, reduction studies and alternative syntheses, SDS of cas: 126613-06-7, the publication is Journal of Organometallic Chemistry (2005), 690(1), 211-219, database is CAplus.
The novel P-chirogenic nonracemic (o-anisyl)phenyl MOP derivatives (1R,RP)- and (1R,SP)-2-[(o-anisyl)phenylphosphino]-2′-methoxy-1,1′-binaphthyls (10a,b) were prepared; their oxides were characterized by x-ray crystallog. Mono-phosphinylation of (R)-1,1′-binaphthyl-2,2′-bis(triflate) [(R)-1] gave diastereomeric mixture of (1R,RP)- and (1R,SP)-2-(ArPhPO)-2′-(OTf)-1,1′-binaphthyls (2a,b; Ar = 2-MeOC6H4) which were hydrolyzed and methylated; the resulting 2′-methoxy-2-phosphinoxides 8a,b were reduced to give corresponding diastereomeric 2-(ArPhP)-2′-methoxy-1,1′-binaphthyls (10a,b). Phosphines 10a,b were also prepared by coupling of (R)-2-methoxy-1,1′-binaphthyl-2-triflate with (2-MeOC6H4)PhPH, which avoids undesirable fragmentation and epimerization during reduction of the phosphinoxides 8a,b. A brief study of the coordination chem. of 10a with different rhodium precursors, relevant to the catalytic asym. addition of boronic acids to aldehydes is also reported.
Journal of Organometallic Chemistry published new progress about 126613-06-7. 126613-06-7 belongs to esters-buliding-blocks, auxiliary class Chiral Diphenols, name is (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate), and the molecular formula is C22H12F6O6S2, SDS of cas: 126613-06-7.
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