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公开(公告)号:US07834222B2
公开(公告)日:2010-11-16
申请号:US11989885
申请日:2006-08-01
IPC分类号: C07C35/27
CPC分类号: C07C29/56 , C07B2200/07 , C07C2602/18 , C07C35/27
摘要: A process for the preparation of a the formula (I): which process comprises the intramolecular cyclopropanation of an epoxide of me formula (II); in the presence of 0.05 to 0.75 equivalents of a secondary amine base and at least one equivalent of an alkyl lithium base, wherein R R1, R2 and R3 are each hydrogen or C1-4 alkyl or R1 and R2 are linked to form- a C3-7 cycloaUcyl or C3-7 cycloalkenyl ring.
摘要翻译: 制备式(I)的方法:该方法包括式(II)的环氧化物的分子内环丙烷化; 在0.05至0.75当量的仲胺碱和至少一当量的烷基锂碱的存在下,其中R 1,R 2和R 3各自为氢或C 1-4烷基或R 1和R 2连接形成-C 3 -7环烷基或C 3-7环烯基环。
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公开(公告)号:US20100099923A1
公开(公告)日:2010-04-22
申请号:US11989885
申请日:2006-08-01
IPC分类号: C07C35/27
CPC分类号: C07C29/56 , C07B2200/07 , C07C2602/18 , C07C35/27
摘要: A process for the preparation of a the formula (I): which process comprises the intramolecular cyclopropanation of an epoxide of me formula (II); in the presence of 0.05 to 0.75 equivalents of a secondary amine base and at least one equivalent of an alkyl lithium base, wherein R R1, R2 and R3 are each hydrogen or C1-4 alkyl or R1 and R2 are linked to form- a C3-7 cycloaUcyl or C3-7 cycloalkenyl ring.
摘要翻译: 制备式(I)的方法:该方法包括式(II)的环氧化物的分子内环丙烷化; 在0.05至0.75当量的仲胺碱和至少一当量的烷基锂碱的存在下,其中R 1,R 2和R 3各自为氢或C 1-4烷基或R 1和R 2连接形成-C 3 -7环烷基或C 3-7环烯基环。
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