作者:Francisco Foubelo、Abdeslam Abou、Miguel Yus
DOI:10.1002/ejoc.200500407
日期:2005.12
between different 1-bromo-n-chloroalkanes (1–3), lithium/naphthalene (1:2 molar ratio) and a carbonyl compound R1R2CO in THF at –78 °C provide, after hydrolysis with water, the corresponding chlorinated alcohols 4 through selective lithiation of the carbon–bromine bond. When an excess of lithium (1:7 molar ratio) is added to the reaction mixture before the hydrolysis, lithiation of the remaining carbon–chlorine
不同的 1-溴-n-氯烷烃 (1-3)、锂/萘(1:2 摩尔比)和羰基化合物 R1R2CO 在 –78 °C 的 THF 中反应,在用水水解后,得到相应的氯化醇 4通过碳-溴键的选择性锂化。当在水解前向反应混合物中加入过量的锂(摩尔比为 1:7)时,剩余的碳-氯键发生锂化。加入第二个羰基化合物 R3R4CO,然后水解,得到相应的二醇 7。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)