Addition of functionalized organolithium reagents to p-benzoquinones and cyclohexadienones: synthesis of functionalized cyclohexadienones, dienols and dienediols
作者:Alfred Fischer、George Narayanan Henderson
DOI:10.1016/s0040-4039(00)81347-7
日期:1983.1
Low temperature addition of functionalized alkyllithium reagents to p-benzoquinones produces 4-alkyl-4-hydroxycyclohexa-2,5-dienones, and reaction of excess of the reagents with quinones yields 1,4-dialkylcyclohexa-2,5-diene-1,4-diols. With 4-acetoxy-, 4-hydroxy-, and 4-methoxy-4-methylcyclohexa-2,5-dienones the corresponding dienols are obtained. A one-step synthesis of the antibiotics 4-acetamido-
在对苯醌中低温添加官能化的烷基锂试剂会生成4-烷基-4-羟基环己2,5-二烯酮,过量的试剂与醌反应会生成1,4-二烷基环己-2,5-二烯-1, 4-二醇。用4-乙酰氧基-,4-羟基-和4-甲氧基-4-甲基环己-2,5-二烯酮得到相应的二烯醇。描述了抗生素4-乙酰氨基-和4-[((乙氧基羰基)甲基] -2,6-二溴-4-羟基环己二酮和抗肿瘤剂jacaranone的一步合成。