Process for producing solanone, norsolanadione and intermediates therefor
    5.
    发明授权
    Process for producing solanone, norsolanadione and intermediates therefor 失效
    制备索罗酮,二酰甘油和其中间体的方法

    公开(公告)号:US4412083A

    公开(公告)日:1983-10-25

    申请号:US357158

    申请日:1982-03-11

    摘要: Described is a process for preparing solanone and norsolanadione using chemical intermediates defined according to the generic structure: ##STR1## wherein X is one of the moieties: ##STR2## wherein R represents hydrogen or methyl; wherein Y represents one of the structures: ##STR3## wherein one of the dashed lines represents a carbon-carbon single bond and the other of the dashed lines represents a carbon-carbon double bond; with the provisos that:(i) when Y is the moiety having the structure: ##STR4## then X is the moiety having the structure: ##STR5## (ii) when X is the moiety having the structure: ##STR6## then Y is the moiety having the structure:--C.tbd.N]In preparing solanone, the compound having the structure: ##STR7## or a mixture of compounds defined according to the structure: ##STR8## is reacted with methyl lithium and the resulting intermediate is hydrolyzed and the resulting compound is dehydrated. In producing the norsolanadione, the compound having the structure: ##STR9## or a mixture of compounds according to the structure: ##STR10## is reacted with ethylene glycol or propylene glycol thereby forming a ketal and the resulting ketal is reacted with methyl lithium and the resulting intermediate is then hydrolyzed in the presence of acid.

    摘要翻译: 描述了使用根据以下通用结构定义的化学中间体制备索罗酮和尼考兰那酮的方法:其中X是部分之一:其中R表示氢或甲基; 其中Y表示以下结构之一:其中一条虚线表示碳 - 碳单键,另一条虚线表示碳 - 碳双键; 条件是:(i)当Y是具有以下结构的部分时:X是具有以下结构的部分:(ⅱ)当X是具有以下结构的部分时,则Y是 具有以下结构的部分:-C 3 N N]在制备solone的过程中,将具有以下结构的化合物:IMAGE或根据结构定义的化合物的混合物与甲基锂反应,并将所得中间体水解, 所得化合物脱水。 在制备硝酰甘油的过程中,将具有以下结构的化合物:IMAGE或根据以下结构的化合物的混合物与乙二醇或丙二醇反应,从而形成缩酮,得到的缩酮与甲基锂反应, 得到的中间体然后在酸的存在下水解。