4-Aryl and heteroaryl-1(2H)-isoquinolones have been prepared by base promoted cyclization of phosphorylated o-aroyl and heteroaroyl benzamides. Subsequent reduction of the carbonyl and styryl functions of the annulated products has given rise to 4-aryl-1,2,3,4-tetrahydroisoquinolines.
Synthesis of 2-substitutedO,O-bis(trimethylsilyl) alkylphosphonites with aryl and heterocyclic fragments and their amino or amido derivatives
作者:Andrey A. Prishchenko、Mikhail V. Livantsov、Olga P. Novikova、Ludmila I. Livantsova、Valery S. Petrosyan
DOI:10.1002/hc.20431
日期:2008.5
Free-radical addition of bis(trimethyl-siloxy)phosphine to various functionalized alkenes with aryl and heterocyclic fragments is proposed as a convenient procedure for the synthesis of new 2-substituted alkylphosphonites of corresponding structures. Also the new functionalized derivatives of these phosphonites, including various amino and amido groups as well as certain properties of these compounds
Synthesis of new functionalized aminomethylphosphonites and their derivatives
作者:Andrey A. Prishchenko、Mikhail V. Livantsov、Olga P. Novikova、Ludmila I. Livantsova、Valery S. Petrosyan
DOI:10.1002/hc.20620
日期:——
aminomethylation of the several esters of hypophosphorous acid using chloro-, alkoxy-, and amino-substituted methylamines of various structure is proposed as convenient method for the synthesis of newfunctionalizedaminomethylphosphonites and bis(aminomethyl)phosphinates. Also O,O-diethyl(pivaloyl)phosphonite is successfully applied in the aminomethylation as a synthetic analog of unstable diethoxyphosphine.
Lithium diorganocuprates add across the triple bond of substituted and non-substituted acetylenic acetals and ketals to give dialkenylcuprates, which can be decomposed into alkoxyallenes or may be trapped with a variety of electrophiles, such as alkyl, alkenyl, alkynyl and aryl halides. They may also undergo conjugate addition to α-βunsaturated esters and ketones. The method is used for the synthesis
作者:Ian Paterson、Sarah J. Fink、Lydia Y. W. Lee、Stephen J. Atkinson、Simon B. Blakey
DOI:10.1021/ol401327r
日期:2013.6.21
highly stereocontrolledtotalsynthesis of the cytotoxic marine macrolide aplyronine C is described. The route exploits aldol methodology to install the requisite stereochemistry and features a crucial boron-mediated aldol coupling of an N-vinylformamide-bearing methyl ketone with a macrocyclic aldehyde to introduce the full side chain. The synthesis of two novel C21–C34 side chain analogs is also
描述了细胞毒性海洋大环内酯 aplyronine C 的高度立体控制的全合成。该路线利用羟醛方法来安装必要的立体化学,并具有关键的硼介导的带有N-乙烯基甲酰胺的甲基酮与大环醛的羟醛偶联,以引入完整的侧链。还报道了两种新型 C21-C34 侧链类似物的合成。