Tandem elimination-oxidation of tertiary benzylic alcohols with an oxoammonium salt
作者:Rowan I. L. Meador、Robert E. Anderson、John D. Chisholm
DOI:10.1039/d1ob00965f
日期:——
alcohols react with oxoammonium salts, undergoing a tandem elimination/allylic oxidation to provide an allylicether product in a single step. This mode of reactivity provides a rapid entry into allylicethers from certain benzylic tertiary alcohols. The allylicether may be cleaved under reductive conditions to reveal the allylic alcohol.
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.
A base-promoted deprotection of 1,3-dioxolanes to ketones
作者:Changchun Yuan、Li Yang、Guizhou Yue、Tianzi Yu、Weiming Zhong、Bo Liu
DOI:10.1016/j.tetlet.2012.10.037
日期:2012.12
An effective deprotection methodology of dioxolanes was developed, affording moderate to excellent yield via a LIMP-promoted reaction in THF, which displays admirable chemoselectivity in the presence of dimethylketal, 1,3-dioxane, 1,3-dithiane, or other acid-sensitive protective groups. (C) 2012 Elsevier Ltd. All rights reserved.
USE OFCERIUM(III) CHLORIDE IN THE REACTIONS OF CARBONYL COMPOUNDS WITH ORGANOLITHIUMS OR GRIGNARD REAGENTS FOR THE SUPPRESSION OF ABNORMAL REACTIONS:1-BUTYL-1,2,3,4-TETRAHYDRO-1-NAPHTHOL
作者:Takeda, Nobuhiro、Imamoto, Tsuneo
DOI:10.15227/orgsyn.076.0228
日期:——
Synthesis of biological markers in fossil fuels. 2. Synthesis and carbon-13 NMR studies of substituted indans and tetralins