A five coordination Cu(<scp>ii</scp>) cluster-based MOF and its application in the synthesis of pharmaceuticals via sp<sup>3</sup> C–H/N–H oxidative coupling
作者:Thuan V. Tran、Hanh T. N. Le、Hiep Q. Ha、Xuan N. T. Duong、Linh H.-T. Nguyen、Tan L. H. Doan、Ha L. Nguyen、Thanh Truong
DOI:10.1039/c7cy00882a
日期:——
fully characterized. This material was demonstrated to be an efficient heterogeneous catalyst for the oxidative C–H activation via N–H bonds. The optimized conditions are applicable for the synthesis of pharmaceuticals constructed by α-amino carbonyl skeletons.
A two-step continuous synthesis of α-ketoamides and α-amino ketones from 2° benzylic alcohols using hydrogen peroxide as an economic and benign oxidant
A practical two-step synthesis of α-ketoamides and α-amino ketones via direct oxidative coupling between 2° benzylic alcohols and amines was developed. Hydrogen peroxide, an economic and environmentally friendly oxidant, was used, and a metal catalyst was unnecessary. Moreover, the continuous-flow technique was employed to increase the functional group tolerance, efficiency and safety.
Simple Catalytic Mechanism for the Direct Coupling of α-Carbonyls with Functionalized Amines: A One-Step Synthesis of Plavix
作者:Ryan W. Evans、Jason R. Zbieg、Shaolin Zhu、Wei Li、David W. C. MacMillan
DOI:10.1021/ja4096472
日期:2013.10.30
The direct alpha-amination of ketones, esters, and aldehydes has been accomplished via copper catalysis. In the presence of catalytic copper(II) bromide, a diverse range of carbonyl and amine substrates undergo fragment coupling to produce synthetically useful alpha-amino-substituted motifs. The transformation is proposed to proceed via a catalytically generated alpha-bromo carbonyl species; nucleophilic displacement of the bromide by the amine then delivers the alpha-amino carbonyl adduct while the catalyst is reconstituted. The practical value of this transformation is highlighted through one-step syntheses of two high-profile pharmaceutical agents, Plavix and amfepramone.
Iwao et al., Yakugaku Zasshi/Journal of the Pharmaceutical Society of Japan, 1954, vol. 74, p. 551,553
作者:Iwao et al.
DOI:——
日期:——
Tertiary Carbinols of the Piperazine Series. I
作者:H. E. Zaugg、R. J. Michaels、H. J. Glenn、L. R. Swett、M. Freifelder、G. R. Stone、A. W. Weston