作者:Isidro M Pastor、Miguel Yus
DOI:10.1016/s0040-4039(00)02172-9
日期:2001.2
acid-catalysed methanolysis, to functionalised methyl esters 2. In the case of chlorotrimethylsilane, hydroxyethyl esters 2′ are isolated. The reaction is also applied to bicyclic orthoesters 3: whereas β-chloro derivatives and carbonyl compounds gives directly γ-lactones 4 after hydrolysis, the corresponding γ-chloro derivative affords the expected methyl esters after methanolysis.
ω氯原酸酯的反应1与锂和4,4'-二-催化量叔在不同亲电[卜的存在-butylbiphenyl(DTBB,5%摩尔)吨CHO,苯甲醛,(CH 2)5在−78°C下的THF中,CO,Et 2 CO,PhCOMe,PhCHNPh,Me 3 SiCl]在水解和酸催化的甲醇分解后,会生成官能化的甲酯2。在氯代三甲基硅烷的情况下,分离出羟乙基酯2'。该反应也适用于双环原酸酯3:而β-氯衍生物和羰基化合物直接生成γ-内酯4 水解后,相应的γ-氯衍生物在甲醇分解后可提供预期的甲酯。