166670-25-3Relevant academic research and scientific papers
A concise route to biaryls: Formal synthesis of biaryl diamino diacid (AB segment) of vancomycin
Rao,Reddy,Reddy
, p. 5039 - 5042 (1994)
An efficient approach to the AB segment of vancomycin involving triphenylphosphine-catalysed coupling of the substituted aryl lithio compound (13) with palladium complex (14) of aromatic Schiff base derived from 3,5- dimethoxybenzaldehyde is described.
Substituent effects on the stretching vibration of C═N in multi-substituted benzylideneanilines
Wang, Linyan,Cao, Chaotun,Cao, Chenzhong
supporting information, (2019/05/29)
Forty-nine samples of 3,4′/4,3′/3,3′-disubstituted benzylideneanilines (XBAYs) and 52 samples of multi-substituted XBAYs were synthesized, and their infrared absorption spectra were recorded in this paper. On the basis of the stretching vibration frequencies νC═N of C═N bridging bond of 158 samples of substituted XBAYs (including 57 samples of 4,4′-disubstituted XBAYs from reference and 101 samples of substituted XBAYs synthesized in this paper), an extensional research of substituent effects on the νC═N values from 4,4′-disubstituted XBAYs to multi-substituted XBAYs was made. A modified equation for quantifying the νC═N values of multi-substituted XBAYs was obtained (shown as Equation (3)). Equation (3) indicates that the excited-state substituent constant of Y and the substituent specific cross-interaction effect between X and X cannot be ignored for the quantitative regression analysis of the νC═N values of multi-substituted XBAYs. Compared with Equation (1), Equation (3) has a wider application and more accuracy in quantifying the νC═N values of substituted XBAYs.
Base-catalyzed synthesis of amides and imines via C-C and CC bond cleavage
Yadav, Dilip Kumar T.,Bhanage, Bhalchandra M.
, p. 12387 - 12391 (2015/02/19)
A transition metal free base catalyzed approach for C-N bond formation via C-C and CC bond activation has been developed. The N-arylureas reacted smoothly with 1,3-dicarbonyls and α,β-unsaturated ketones to furnish the corresponding amides and imines respectively in moderate to excellent yields.
