New stabilising groups for lateral lithiation of ortho-cresol derivatives and a new route to 2-substituted chromans
摘要:
2-(2-Methoxyethoxy)-toluene and 2-(2-dimethylaminoetlioxy)-toluene have been lithiated using sec-BuLi under a variety of conditions and the laterally lithiated species trapped with electrophiles, including but-1-ene oxide, leading to a new synthesis of 2-ethylchroman. (C) 2008 Elsevier Ltd. All rights reserved.
New stabilising groups for lateral lithiation of ortho-cresol derivatives
作者:James A. Wilkinson、Eun-Ang Raiber、Sylvie Ducki
DOI:10.1016/j.tetlet.2007.07.070
日期:2007.9
1 -(2-Methoxyethoxy) -2-methyl benzene and 1-(2-dimethylaminoethoxy)-2-methylbenzene have been lithiated using seeBuLi under a variety of conditions and the laterally lithiated species trapped with electrophiles. (c) 2007 Elsevier Ltd. All rights reserved.