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    Process for preparing 3-(3,5-di-tert.alkyl-4-hydroxy-phenyl)-2,2-di-substituted propionaldehydes
    9.
    发明授权
    Process for preparing 3-(3,5-di-tert.alkyl-4-hydroxy-phenyl)-2,2-di-substituted propionaldehydes 失效
    制备3-（3,5-二叔烷基-4-羟基 - 苯基）-2,2-二取代的丙醛的方法

    公开(公告)号：US4284823A

    公开(公告)日：1981-08-18

    申请号：US084490

    申请日：1979-10-15

    申请人： Richard H. Kline

    发明人： Richard H. Kline

    IPC分类号： B01J23/00 ,  B01J31/00 ,  C07B61/00 ,  C07C45/00 ,  C07C45/70 ,  C07C45/71 ,  C07C47/27 ,  C07C47/46 ,  C07C49/245 ,  C07C67/00 ,  C07C205/17 ,  C09K15/08 ,  C07C45/61

    CPC分类号： C07C255/00 ,  C07C201/12 ,  C07C45/70 ,  C07C45/71 ,  C07C47/27 ,  C07C49/245 ,  C09K15/08

    摘要： There is disclosed a process comprising reacting a compound having the general structural Formula II: ##STR1## with a compound having the general Formula III: ##STR2## in the presence of a basic catalyst while dissolved in an organic solvent to yield an aldehyde having the structural Formula I: ##STR3## wherein R.sub.1 and R.sub.2 are the same or different radicals selected from the group consisting of tertiary alkyl radicals having from 4 to 12 carbon atoms, R.sub.3 and R.sub.4 are the same or different radicals selected from the group consisting of alkyl radicals containing from 1 to 12 carbon atoms, cycloalkyl radicals containing from 5 to 12 carbon atoms, phenyl and substituted phenyl radicals or R.sub.3 and R.sub.4 with the carbon atom to which they are joined may form a cycloalkyl ring of from 5 to 12 carbon atoms, R.sub.5 is selected from the group consisting of hydrogen, alkyl radicals containing from 1 to 12 carbon atoms, or a cycloalkyl radical containing 5 or 6 carbon atoms.

    摘要翻译： 公开了一种方法，该方法包括在碱性催化剂的存在下将具有通式II：II的化合物与具有通式III的化合物：III族化合物反应，同时溶解在有机溶剂中，得到醛 具有结构式I：其中R 1和R 2是相同或不同的选自具有4至12个碳原子的叔烷基的基团，R 3和R 4是相同或不同的选自基团 由含有1至12个碳原子的烷基，含有5至12个碳原子的环烷基，苯基和取代的苯基或与其连接的碳原子的R 3和R 4组成的环烷基环可以形成5至12个 碳原子，R5选自氢，含有1至12个碳原子的烷基或含有5或6个碳原子的环烷基。