Biosynthesis of Cu/KF/Clinoptilolite@MWCNTs nanocomposite and its application as a recyclable nanocatalyst for the synthesis of new Schiff base of benzoxazine derivatives and reduction of organic pollutants was written by Hamedani, Naghmeh Faal;Hargalani, Fariba Zamani;Rostami-Charati, Faramarz. And the article was included in Molecular Diversity in 2022.SDS of cas: 2253-73-8 The following contents are mentioned in the article:
A new Schiff base of benzoxazine derivativesI (R = ethoxycarbonyl, CN; R1 = i-Pr, Ph, Bn, etc.; R2 = Me, Et; R3 = H, OMe, Me, OH; R4 = H, Me) in excellent yields using multicomponent reactions of phthalaldehyde or its derivatives2-CHO3-R3-5-R4-C6H2CHO primary amines RCH2NH2, isothiocyanates R1N=C=S, 2,4-dihydroxyacetophenone, isopropenylacetylene and Me or Et amine in the presence of catalytic amount of Cu/KF/CP@MWCNTs NCs in water at room temperature were synthesized. Also, the catalytic activity of the green synthesized Cu/KF/CP@MWCNTs NCs was evaluated in the reduction in organic pollutants such as 4-nitrophenol (4-NP) in water at mild conditions. The results indicated that the biosynthesized NCs have very high and effective catalytic activity for organic pollutants within few seconds. As well the antioxidant activity of some synthesized benzoxazine was studied using trapping of radical by DPPH and ferric reduction activity potential (FRAP) experiment The short time of reaction, high yields of product, easy separation of catalyst and products are some benefits of this procedure. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8SDS of cas: 2253-73-8).
Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. SDS of cas: 2253-73-8
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics