Process for producing 4-alkoxycarbonyl-2-oxazolidinone compound
    1.
    发明授权
    Process for producing 4-alkoxycarbonyl-2-oxazolidinone compound 失效
    制备4-烷氧基羰基-2-恶唑烷酮化合物的方法

    公开(公告)号:US06414160B1

    公开(公告)日:2002-07-02

    申请号:US09480558

    申请日:2000-01-10

    IPC分类号: C07D26338

    CPC分类号: C07D263/44 C07D263/24

    摘要: The present invention relates to a process for producing 4-alkoxycarbonyl-2-oxazolidinone compound represented by the formula (III): wherein R1 represents H, an alkyl group, an cycloalkyl group, an alkenyl group or a phenyl group, R2 represents H, an alkyl group, a phenyl group or an alkenyl group, R3 represents an alkyl group, a cycloalkyl group, an alkenyl group, or a phenyl group, and R4 represents H, an alkyl group, an alkenyl group, acycloalkyl group, alkynyl group, an aryl group, a 5- or 6-membered heteroaromatic ring group, an alkoxycarbonyl group, an acetyl group or a benzoyl group, which comprises reacting a 5-alkoxy-2(3H)oxazolone compound represented by the formula (I): wherein R1, R2 and R3 have the same meanings as defined above, and an aldehyde compound represented by the formula (II): R4CHO  (II) wherein R4 has the same meaning as defined above, in the presence of a Lewis acid catalyst.

    摘要翻译: 本发明涉及式(III)表示的4-烷氧基羰基-2-恶唑烷酮化合物的制备方法:其中R1表示H,烷基,环烷基,烯基或苯基,R2表示H, 烷基,苯基或烯基,R 3表示烷基,环烷基,烯基或苯基,R 4表示H,烷基,烯基,环烷基,炔基, 芳基,5或6元杂芳环,烷氧基羰基,乙酰基或苯甲酰基,其包括使式(I)表示的5-烷氧基-2(3H)恶唑酮化合物:其中 R 1,R 2和R 3具有如上所定义的相同含义,和由式(II)表示的醛化合物:其中R 4具有与上述相同的含义,在路易斯酸催化剂存在下。

    5-alkoxy-2(3H)-oxazolone compounds and process for preparing the same
    2.
    发明授权
    5-alkoxy-2(3H)-oxazolone compounds and process for preparing the same 失效
    (3H) - 恶唑酮化合物及其制备方法

    公开(公告)号:US6020496A

    公开(公告)日:2000-02-01

    申请号:US308018

    申请日:1999-05-12

    摘要: 5-Alkoxy-2(3H)-oxazolone compounds represented by general formula (1); and a R.sup.1 process for the preparation thereof, wherein R.sup.1 is hydrogen, optionally substituted C.sub.1 -C.sub.10 alkyl, optionally substituted C.sub.3 -C.sub.10 cycloalkyl, optionally substituted C.sub.2 -C.sub.10 alkenyl or optionally substituted phenyl; R.sup.2 is hydrogen, optionally substituted C.sub.1 -C.sub.10 alkyl, optionally substituted phenyl or unsubstituted C.sub.2 -C.sub.10 alkenyl; R.sup.3 is optionally substituted C.sub.1 -C.sub.10 alkyl, optionally substituted C.sub.3 -C.sub.10 cycloalkyl, optionally substituted C.sub.2 -C.sub.10 alkenyl excluding 2-alkenyl, or optionally substituted phenyl. ##STR1##

    摘要翻译: PCT No.PCT / JP97 / 04157 Sec。 371日期1999年5月12日 102(e)日期1999年5月12日PCT 1997年11月14日PCT公布。 第WO98 / 22449号公报 日期:19985年5月28日 - 由通式(1)表示的烷氧基-2(3H) - 恶唑酮化合物; 和其制备方法,其中R1为氢,任选取代的C 1 -C 10烷基,任选取代的C 3 -C 10环烷基,任选取代的C 2 -C 10烯基或任选取代的苯基; R 2是氢,任选取代的C 1 -C 10烷基,任选取代的苯基或未取代的C 2 -C 10烯基; R 3是任选取代的C 1 -C 10烷基,任选取代的C 3 -C 10环烷基,任选取代的C2-C10链烯基或任选取代的苯基。