A series of spiro-isoxazolines 1a-e was prepared in an one-step procedure by treating the corresponding tricarbonyl 3a-e derivatives with hydroxylamine hydrochloride. (C) 1999 Elsevier Science Ltd. All rights reserved.
Abstract A mild and convenient oxidative Nefreaction using Oxone® (potassium hydrogen persulfate) is described. Following our procedure primary and secondary nitroalkanes generate carboxylic acids and ketones, respectively, both in good yields. †Deceased on January 1st 1998
Deprotection of 1,3-oxathiolanes to ketones promoted by base
作者:Biao Du、Changchun Yuan、Langzhong Zhang、Li Yang、Bo Liu
DOI:10.1016/j.tetlet.2013.02.053
日期:2013.5
A variety of 1,3-oxathiolanes can be easily converted to the corresponding ketones in good yields with LTMP in THF. This deprotection methodology shows satisfactory chemoselectivity when other protecting groups, such as dimethylketal, 1,3-dioxolane, 1,3-dithiane, and other acid-sensitive groups, are present within the same substrates. (C) 2013 Elsevier Ltd. All rights reserved.