C–H functionalisation of aldehydes using light generated, non-stabilised diazo compounds in flow
作者:Paul Dingwall、Andreas Greb、Lorène N. S. Crespin、Ricardo Labes、Biagia Musio、Jian-Siang Poh、Patrick Pasau、David C. Blakemore、Steven V. Ley
DOI:10.1039/c8cc06202a
日期:——
Here we explore further the use of oxadiazolines, non-stabilised diazo precursors which are bench stable, in direct, non-catalytic, aldehyde C–H functionalisation reactions under UV photolysis in flow and free from additives.
One-Pot Transformation of Aldehydes to Ketones via Minisci-Type Reaction of Imines
作者:Zakhar M. Rubanov、Vitalij V. Levin、Alexander D. Dilman
DOI:10.1021/acs.orglett.3c03764
日期:2023.12.8
A method for the conversion of aldehydes to ketones via the preliminary formation of aldiminines is described. The imines are involved in acid promoted Minisci-type reaction with alkyl radicals generated fromesters of N-hydroxylphthalimide under photoredox conditions. Aminyl radical cations formed after the addition of the iminium ions are believed to be key intermediates, which determine the reaction