Multicomponent synthesis of tertiary alkylamines by photocatalytic olefin-hydroaminoalkylation
作者:Aaron Trowbridge、Dominik Reich、Matthew J. Gaunt
DOI:10.1038/s41586-018-0537-9
日期:2018.9
accessible feedstocks into sp3-rich architectures provide a strategic advantage in the synthesis of complex alkylamines. Here we report a multicomponent, reductive photocatalytic technology that combines readily available dialkylamines, carbonyls and alkenes to build architecturally complex and functionally diverse tertiary alkylamines in a single step. This olefin-hydroaminoalkylation process involves a
1,6-Addition of Tertiary Carbon Radicals Generated From Alcohols or Carboxylic Acids by Visible-Light Photoredox Catalysis
作者:Samir Y. Abbas、Peng Zhao、Larry E. Overman
DOI:10.1021/acs.orglett.7b04034
日期:2018.2.2
The addition of tertiary carbon radicals generated by an Ir-catalyzed visible-light photocatalyst to electron-deficient 1,3-dienes proceeds in good yields to append a δ-substituted β,γ-unsaturated carbonyl fragment to a tertiary alcohol or carboxylicacid precursor and construct a new quaternary carbon center.
Copper-Catalyzed Aerobic Oxidative Rearrangement of Tertiary Allylic Alcohols Mediated by TEMPO
作者:Jean-Michel Vatèle
DOI:10.1055/s-0029-1217545
日期:2009.8
A mild method for the oxidativerearrangement of tertiary allylic alcohols to β-substituted enones using a TEMPO/CuCl 2 system, in the presence of molecular sieves, is described. Depending on the substrate, CuCl 2 was used in either a catalytic amount under an oxygen atmosphere or stoichiometrically.
Lewis Acid promoted Oxidative
Rearrangement of Tertiary Allylic Alcohols with the PhIO/TEMPO
System
作者:Jean-Michel Vatèle
DOI:10.1055/s-2008-1078500
日期:——
catalyzed oxidativerearrangement of tertiary allylic alcohols to β-disubstituted enones by the TEMPO/PhIO system is described. Bismuth triflate was found to be the most efficient catalyst for the majority of the substrates tested except for tertiary vinyl carbinols which could be transformed to enals in fair yields only when Re 2 O 7 was used as catalyst. A plausible mechanism for this oxidative rearrangement
描述了一种温和且环境友好的方法,用于路易斯酸催化叔烯丙醇氧化重排为 TEMPO/PhIO 系统的 β-二取代烯酮。发现三氟甲磺酸铋是大多数测试底物的最有效催化剂,但叔乙烯基甲醇除外,只有当使用 Re 2 O 7 作为催化剂时,叔乙烯基甲醇才能以合理的产率转化为烯醛。讨论了这种氧化重排的合理机制。
1,3-Oxidative Rearrangements of Dienols
作者:George Majetich、Stephen Condon、Kenneth Hull、Saeed Ahmad
DOI:10.1016/s0040-4039(01)80351-8
日期:1989.1
Oxidation of 1-vinyl-2-cycloalken-1-ols with PDC regiospecifically affords conjugateddienones in moderate to good yields.