Butyrolactone-preparation process
    2.
    发明授权
    Butyrolactone-preparation process 失效
    丁内酯制备工艺

    公开(公告)号:US5962700A

    公开(公告)日:1999-10-05

    申请号:US11607

    申请日:1998-02-12

    CPC分类号: C07D315/00

    摘要: A process for the preparation of butyrolactones of the formula I ##STR1## where the substituents R.sup.1 and R.sup.2 are hydrogen, alkyl or hydroxyalkyl groups, or aryl and trialkylsilyl groups, if appropriate carrying inert: substituents, is described in which an alkyne of the formula IIR.sup.1 --C.tbd.C--R.sup.2 IIwhere the substituents have the meanings indicated above, is reacted under reducing conditions at elevated pressure and elevated temperature with carbon monoxide CO and hydrogen in the presence of a transition metal catalyst or with carbon monoxide and water in the presence of a transition metal catalyst.

    摘要翻译: PCT No.PCT / EP96 / 03472 Sec。 371日期1998年2月12日 102(e)日期1998年2月12日PCT 1996年8月6日PCT PCT。 公开号WO97 / 07111 日期1997年2月27日描述了制备式I的丁内酯的方法,其中取代基R 1和R 2是氢,烷基或羟基烷基,或芳基和三烷基甲硅烷基,如果适用的话带有惰性:取代基,其中描述了炔 其中取代基具有上述含义的式IIR1-C 3BOND C-R2II在还原条件下在升高的压力和升高的温度下与一氧化碳CO和氢在过渡金属催化剂或一氧化碳和水的存在下反应 过渡金属催化剂的存在。

    Preparation of monovinyl ethers
    4.
    发明授权
    Preparation of monovinyl ethers 失效
    单乙烯基醚的制备

    公开(公告)号:US5723685A

    公开(公告)日:1998-03-03

    申请号:US548739

    申请日:1995-10-26

    CPC分类号: C07C41/08 C07C41/54

    摘要: The preparation of monovinyl ethers of the general formula I ##STR1## in which A stands for a chemical bond or for a methylene or ethylene group, the radicals R.sup.1 and R.sup.2 independently stand for hydrogen, alkyl, cycloalkyl, or aryl groups or R.sup.1 and R.sup.2 together form a C.sub.3 -C.sub.5 alkylene bridging member, by the reaction of a diol of the general formula II ##STR2## in which the variables have the above meanings, with acetylene in the presence of a base, in which the reaction is carried out at 150.degree.-250.degree. C. under an acetylene partial pressure of 5-25 bar until 40-80% of the diol has been converted, at which point the reaction is stopped and the monovinyl ether of the formula I is isolated.

    摘要翻译: 制备通式I的单乙烯基醚(I)其中A代表化学键或亚甲基或亚乙基,基团R 1和R 2分别代表氢,烷基,环烷基或芳基或 R 1和R 2一起形成C 3 -C 5亚烷基桥连体,通过其中变量具有上述含义的通式II的二醇(II)与乙炔在碱的存在下反应,其中 反应在150-250℃,乙炔分压为5-25巴下进行,直到二醇的40-80%转化为止,此时反应停止,式I的单乙烯基醚 是孤立的

    Preparation of N-alkenylazoles
    5.
    发明授权
    Preparation of N-alkenylazoles 失效
    N-链烯基唑的制备

    公开(公告)号:US5646293A

    公开(公告)日:1997-07-08

    申请号:US675588

    申请日:1996-07-03

    摘要: A process for preparing N-alkenylazoles of the general formula I ##STR1## where X is CH--R.sup.6 or nitrogen,R.sup.1 and R.sup.2 are hydrogen or C.sub.1 - to C.sub.8 -alkyl,R.sup.3,R.sup.4,R.sup.5 and R.sup.6 are hydrogen, C.sub.1 - to C.sub.40 -alkyl, C.sub.2 - to C.sub.40 -alkenyl, C.sub.3 - to C.sub.20 -cycloalkyl, C.sub.4 - to C.sub.20 -alkylcycloalkyl, C.sub.4 - to C.sub.20 -cycloalkylalkyl, aryl, C.sub.7 - to C.sub.20 -alkylaryl or C.sub.7 - to C.sub.20 -aralkyl, or aryl, C.sub.7 - to C.sub.20 -alkylaryl or C.sub.7 - to C.sub.20 -aralkyl which are mono- to pentasubstituted by C.sub.1 - to C.sub.8 -alkyl, C.sub.1 - to C.sub.8 -alkoxy or halogen, or R.sup.3 and R.sup.4 or R.sup.4 and R.sup.5 or R.sup.5 and R.sup.6 together are a C.sub.2 - to C.sub.10 -alkylene chain which is unsubstituted or mono- to hexasubstituted by C.sub.1 - to C.sub.8 -alkylby reaction of azoles of the general formula II ##STR2## where X, R.sup.3, R.sup.4 and R.sup.5 have the abovementioned meanings, with an alkenyl carboxylate of the general formula III ##STR3## where R.sup.1 and R.sup.2 have the abovementioned meanings and R.sup.7 is hydrogen, C.sub.1 - to C.sub.40 -alkyl, C.sub.3 - to C.sub.20 -cycloalkyl, C.sub.4 - to C.sub.20 -alkylcycloalkyl, aryl, C.sub.7 - to C.sub.20 -alkylaryl, C.sub.7 - to C.sub.20 -aralkyl, or aryl or C.sub.7 - to C.sub.20 -aralkyl which is mono- to trisubstituted by C.sub.1 - to C.sub.8 -alkyl, at from 0.degree. to 180.degree. C. and from 0.01 to 10 bar, which comprises carrying out the reaction in the presence of a base and of a quaternary salt, is described.

    摘要翻译: 制备通式I(I)的N-烯基唑的方法,其中X是CH-R6或氮,R1和R2是氢或C1-至C8-烷基,R3,R4,R5和R6是氢, C 1至C 40 - 烷基,C 2至C 40 - 烯基,C 3 -C 20 - 环烷基,C 4至C 20 - 烷基环烷基,C 4 -C 20 - 环烷基烷基,芳基,C 7 -C 20烷基芳基或C 7 -C 20 - 芳烷基 ,或被C 1〜C 8 - 烷基,C 1 -C 8 - 烷氧基或卤素单 - 五取代的芳基,C 7〜C 20 - 烷基芳基或C 7〜C 20 - 芳烷基,或者R 3和R 4或R 4和R 5或R 5 和R6一起是C2至C10亚烷基链,其未被取代或被C 1 -C 8 - 烷基单取代或被六取代的通式II(II)的唑类,其中X,R 3,R 4和R 5 具有上述含义,具有通式III(III)的烯基羧酸酯,其中R 1和R 2具有上述含义,并且R 7是氢,C 1至C 40烷基,C 3 -C 20环烷基,C 4至 C20-烷基环烷基,芳基,C7-至C20-烷基芳基,C7-至C20-芳基 烷基或芳基或被C 1 -C 8烷基单取代三取代的C 7 -C 20 - 芳烷基,其中0至180℃和0.01至10巴,其包括在存在下进行反应 的碱和季盐。

    Preparation of alkynediols
    6.
    发明授权
    Preparation of alkynediols 失效
    炔二醇的制备

    公开(公告)号:US06369282B1

    公开(公告)日:2002-04-09

    申请号:US09577127

    申请日:2000-05-24

    IPC分类号: C07C3118

    摘要: The process for preparing alkynediols of the formula (I) R1R2C(OH)—C≡C—C(OH)R1R2  (I) where R1, R2 are each independently H, or a C1-20-hydrocarbon radical which may be substituted by one or more C1-6-alkyls and/or be interrupted by nonadjacent heteroatoms and/or contain C—C double or triple bonds, by reacting compounds of the formula (II) R1—C(═O)—R2  (II) with acetylene in a polar aprotic solvent is carried out in the presence of basic alkali metal salts as catalysts.

    摘要翻译: 制备式(I)的炔二醇的方法,其中R 1,R 2各自独立地为H,或可被一个或多个C 1-6 - 烷基取代和/或被不相邻的杂原子中断的C 1-20烃基和/ 或含有CC双键或三键,通过使式(II)化合物与极性非质子溶剂中的乙炔反应,在碱性碱金属盐作为催化剂的存在下进行。

    Method for producing 2-alkynoic acid esters
    8.
    发明授权
    Method for producing 2-alkynoic acid esters 失效
    2-炔酸酯的制备方法

    公开(公告)号:US6153786A

    公开(公告)日:2000-11-28

    申请号:US402893

    申请日:1999-10-13

    CPC分类号: C07C67/00 C07C67/36

    摘要: A process for preparing 2-alkynoic esters of the general formula (I),R.sup.1 --O--CO--C.tbd.C--R.sup.2 (I)in which R.sup.1 and R.sup.2 independently are C.sub.1-16 -alkyl, C.sub.6-12 -aryl, C.sub.7-12 -aralkyl or C.sub.7-12 -alkylaryl radicals, and R.sup.2 can also be hydrogen,by reacting a chloroformate of the general formula (II),R.sup.1 --O--CO--Cl (II)with an alkyne of the general formula (III),R.sup.2 --C.tbd.C--H (III)is carried out in the presence of a Pt and/or Pd complex which has phosphine ligands and/or phosphite ligands as catalyst.

    摘要翻译: PCT No.PCT / EP98 / 02021 Sec。 371 1999年10月13日第 102(e)1999年10月13日PCT 1998年4月7日提交PCT公布。 公开号WO98 / 46555 日期:1998年10月22日制备通式(I)的2-炔炔酯的方法,其中R 1和R 2独立地为C 1-6 - 烷基,C 6 -C 12 - 12芳基,C7-12芳烷基或C7-12烷基芳基,R2也可以是氢,通式(II)的氯甲酸酯,R1-O-CO-Cl(Ⅱ)与 在具有膦配体和/或亚磷酸酯配体作为催化剂的Pt和/或Pd络合物的存在下,通式(III),R2-C 3BOND CH(III)进行。