2026-04-17T09:34:06Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/55342021-11-02T12:05:28Zcom_10259_3593com_10259_5086com_10259_2604col_10259_3594

Sedano Labrador, Carlos Velasco, Rocío Feberero, Claudia Suarez Pantiga, Samuel Sanz Díez, Roberto 2020-08 The α-lithiobenzyloxy group, easily generated from aryl benzyl ethers by selective α-lithiation with t-BuLi at low temperature, behaves as a directed metalation group (DMG) providing a direct access to o-lithiophenyl α-lithiobenzyl ethers. This ortho-directing effect is reinforced in substrates bearing an additional methoxy group at the meta position. The generated dianions can be reacted with a selection of electrophiles including carboxylic esters and dihalosilanes or germanes, which afford interesting benzofuran, sila(germa)dihydrobenzofuran, and silachroman derivatives from simple aryl benzyl ethers. application/pdf http://hdl.handle.net/10259/5534 eng American Chemical Society α-Lithiobenzyloxy as a Directed Metalation Group in ortho-Lithiation Reactions info:eu-repo/semantics/article TEXT RIUBU. Repositorio Institucional de la Universidad de Burgos Hispana