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.