1,1,2,3,3,6-hexamethyl-4,5,6,7-tetrahydro-5-indanone and fragrance
compositions containing same
    1.
    发明授权
    1,1,2,3,3,6-hexamethyl-4,5,6,7-tetrahydro-5-indanone and fragrance compositions containing same 失效
    1,1,2,3,3,6-十六烷基-4,5,6,7-四氢-2H-吲哚及其含有的芳香族组合物

    公开(公告)号:US5164365A

    公开(公告)日:1992-11-17

    申请号:US661361

    申请日:1991-02-26

    摘要: The present invention concerns the novel odorant 1,1,2,3,3,6-hexamethyl-4,5,6,7-tetrahydro-5-indanone, I, a process for the manufacture of I, novel intermediates used in the process and fragrance compositions containing I. ##STR1## The process for the manufacture of 1,1,2,3,3,6-hexamethyl-4,5,6,7-tetrahydro-5-indanone comprises hydroborating 1,1,2,3,3,6-hexamethyl-4,7-dihydroindane and oxidizing the hydroboration product to 1,1,2,3,3,6-hexamethyl-4,5,6,7-tetrahydro-5-indanone, or reductively alkylating, especially methylating, 5-nitro-1,1,2,3,3,6-hexamethylindane and converting the resulting 5-dialkyl-amino-1,1,2,3,3,6-hexamethylindane into 1,1,2,3,3,6-hexamethyl-4,5,6,7-tetrahydro-5-indanone by reduction of the benzene ring and hydrolysis of the resulting enamine.

    摘要翻译: 本发明涉及新颖的加味剂1,1,2,3,3,6-六甲基-4,5,6,7-四氢-5-二氢茚酮I,一种制备I的方法,用于 含有I的方法和香料组合物。制备1,1,2,3,3,6-六甲基-4,5,6,7-四氢-5-茚酮的方法包括将1,1, 2,3,3,6-六甲基-4,7-二氢茚满,并将该氢化产物氧化成1,1,2,3,3,6-六甲基-4,5,6,7-四氢-5-二氢茚酮,或 将5-硝基-1,1,2,3,3,6-六甲基茚满还原性烷基化,特别是甲基化,并将所得的5-二烷基 - 氨基-1,1,2,3,3,6-六甲基茚满转化成1,1 ,2,3,3,6-六甲基-4,5,6,7-四氢-5-茚酮通过还原苯环和水解所得的烯胺。