Trialkylalanes in palladium-catalyzed chemo- and regioselective alkylations
摘要:
Carbosubstitution in halogenoazines with allyl groups is readily effected under the influence of Pd-catalysis with slanes as the donor of the alkyl group.
Visible-light photocatalyzed C–N bond activation of tertiary amines: a three-component approach to synthesize quinazolines
作者:Ajithkumar Arumugam、Gopal Chandru Senadi
DOI:10.1039/d3ob02067c
日期:——
three-component approach has been developed to prepare 2,4-disubstituted quinazolines from o-acylanilines, trialkylamines and ammonium chloride under visible-light using eosin Y as the photocatalyst. The notable features of this work include (i) the use of tertiaryamines as an alkyl synthon and triethanolamine as a C2-OH synthon; (ii) good functional group tolerance with 52%–98% yields; (iii) proof of
开发了一种无金属三组分方法,以曙红 Y 作为光催化剂,在可见光下由邻酰基苯胺、三烷基胺和氯化铵制备 2,4-二取代喹唑啉。这项工作的显着特点包括(i)使用叔胺作为烷基合成子和三乙醇胺作为C 2 -OH合成子; (ii) 良好的官能团耐受性,产率 52%–98%; (iii) 以邻氨基苯甲醛为底物传递 2-甲基喹唑啉3pa的概念验证; (iv)化合物3ga 、 3ja和3ma的克级合成。基于控制研究和氧化还原电位值,提出了还原猝灭机制。
Trialkylalanes in palladium-catalyzed chemo- and regioselective alkylations
作者:Inoel Mangalagiu、Tore Benneche、Kjell Undheim
DOI:10.1016/0040-4039(95)02381-x
日期:1996.2
Carbosubstitution in halogenoazines with allyl groups is readily effected under the influence of Pd-catalysis with slanes as the donor of the alkyl group.
Trialkylalanes in Palladium-Catalyzed C-Alkylations of Azines.
Carbo-substitution with alkyl groups in halogenoazines is readily effected under the influence of Pd-catalysis with alanes as the donor of the alkyl group.