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    • 52. 发明授权
    • Isomer-directed process for producing asymmetric ketones using catalytic
claisen rearrangement of allylic ethers, intermediates, and uses of
products and intermediates of process in perfumery
    • 使用烯丙基醚的催化裂化重排,中间体以及香料中的产品和中间体的产物和中间体来生产不对称酮的异构体定向方法
    • US4616095A
    • 1986-10-07
    • US765342
    • 1985-08-13
    • Mark A. SpreckerRobert P. BelkoWilliam L. SchreiberMichael Licciardello
    • Mark A. SpreckerRobert P. BelkoWilliam L. SchreiberMichael Licciardello
    • C07C43/305C07C45/51C07C49/21C07C49/217C11B9/00
    • C07C403/16C07C43/305C07C45/515C11B9/0015C11B9/0034C11B9/0061C07C2101/14C07C2101/16
    • Described is an isomer-directed process for producing asymmetric ketones defined according to the generic structure: ##STR1## wherein one of Z.sub.1 or Z.sub.2 is the moiety: ##STR2## and the other of Z.sub.1 or Z.sub.2 is hydrogen; wherein R.sub.11 and R.sub.21 represent hydrogen or the same or different alkyl or alkenyl with the proviso that R.sub.11 and R.sub.21 are not both hydrogen or wherein R.sub.11 and R.sub.21 taken together:(i) complete a cycloalkyl, cycloalkenyl, bicycloalkyl, mono or polyalkyl cycloakyl or mono or polyalkyl cycloalkenyl ring, or(ii) represent alkylidene, cycloalkenyl alkylidene, aralkylidene, mono or polyalkyl cycloalkenyl alkylidene or mono or polyalkyl aralkylidene;and wherein R.sub.6, R.sub.7 and R.sub.8 are the same or different and each represents hydrogen or methyl, using a catalytic Claisen rearrangement of allylic ethers previously formed by reacting substituted or unsubstituted allylic alcohols defined according to the structure: ##STR3## with dialkyl ketals defined according to the structure: ##STR4## wherein R.sub.4 and R.sub.5 represent the same or different C.sub.1 -C.sub.4 alkyl.Also described are compounds and processes for using same in perfumery defined according the structures: ##STR5## Also described are certain diallylic ethers defined according to the generic structure: ##STR6##
    • 描述了根据通用结构定义的不对称酮的异构体定向方法:其中Z1或Z2之一为部分:Z1和Z2中的另一个为氢; 其中R11和R21表示氢或相同或不同的烷基或烯基,条件是R11和R21不同时为氢或其中R11和R21一起组合:(i)完成环烷基,环烯基,双环烷基,单或多烷基环烷基或单 或聚烷基环烯基环,或(ii)代表亚烷基,环烯基亚烷基,亚烷叉基,单或多烷基环烯基亚烷基或单或多烷基亚烷基; 并且其中R 6,R 7和R 8相同或不同,并且各自表示氢或甲基,使用以前通过使根据以下结构定义的取代或未取代的烯丙基醇反应形成的烯丙基醚的催化Claisen重排:< IMAGE> 结构:其中R 4和R 5表示相同或不同的C 1 -C 4烷基。 还描述了在根据以下结构定义的香料中使用它们的化合物和方法:其中描述了根据以下结构定义的某些二烯丙基醚: 到通用结构:
    • 53. 发明授权
    • Isomer-directed process for producing asymmetric ketones using catalytic
Claisen rearrangement of allylic ethers, intermediates, and uses of
products and intermediates of process in perfumery
    • 使用烯丙基醚的催化Claisen重排,中间体以及香料中产品和方法中间体的用途来生产不对称酮的异构体定向方法
    • US4576741A
    • 1986-03-18
    • US671473
    • 1984-11-14
    • Mark A. SpreckerRobert P. BelkoWilliam L. SchreiberMichael Licciardello
    • Mark A. SpreckerRobert P. BelkoWilliam L. SchreiberMichael Licciardello
    • C07C43/305C07C45/51C11B9/00C11D3/50A61K7/46
    • C07C403/16C07C43/305C07C45/515C11B9/0015C11B9/0034C11B9/0061C07C2101/14C07C2101/16
    • Described in an isomer-directed process for producing asymmetric ketones defined according to the generic structure: ##STR1## wherein one of Z.sub.1 or Z.sub.2 is the moiety: ##STR2## and the other of Z.sub.1 or Z.sub.2 is hydrogen; wherein R.sub.11 and R.sub.21 represent hydrogen or the same or different alkyl or alkenyl with the proviso that R.sub.11 and R.sub.21 are not both hydrogen or wherein R.sub.11 and R.sub.21 taken together:(i) complete a cycloalkyl, cycloalkenyl, bicycloalkyl, mono or polyalkyl cycloalkyl or mono or polyalkyl cycloalkenyl ring, or(ii) represent alkylidene, cycloalkenyl alkylidene, aralkylidene, mono or polyalkyl cycloalkenyl alkylidene or mono or polyalkyl aralkylidene;and wherein R.sub.6, R.sub.7 and R.sub.8 are the same or different and each represents hydrogen or methyl, using a catalytic Claisen rearrangement of allylic ethers previously formed by reacting substituted or unsubstituted allylic alcohols defined according to the structure: ##STR3## with dialkyl ketals defined according to the structure: ##STR4## wherein R.sub.4 and R.sub.5 represent the same or different C.sub.1 -C.sub.4 alkyl.Also described are compounds and processes for using same in perfumery defined according the structures: ##STR5## Also described are certain diallylic ethers defined according to the generic structure: ##STR6##
    • 描述于根据通用结构定义的用于制备不对称酮的异构体定向方法:其中Z1或Z2之一为部分:Z1或Z2中的另一个为氢; 其中R11和R21表示氢或相同或不同的烷基或烯基,条件是R11和R21不同时为氢或其中R11和R21一起组合:(i)完成环烷基,环烯基,双环烷基,单或多烷基环烷基或单 或聚烷基环烯基环,或(ii)代表亚烷基,环烯基亚烷基,亚烷叉基,单或多烷基环烯基亚烷基或单或多烷基亚烷基; 并且其中R 6,R 7和R 8相同或不同,并且各自表示氢或甲基,使用以前通过使根据以下结构定义的取代或未取代的烯丙基醇反应形成的烯丙基醚的催化Claisen重排:< IMAGE> 结构:其中R 4和R 5表示相同或不同的C 1 -C 4烷基。 还描述了在根据以下结构定义的香水中使用该化合物的化合物和方法:还描述了根据通用物质定义的某些二烯丙基醚 结构: