Preparation of butyrolactones
    101.
    发明授权
    Preparation of butyrolactones 失效
    丁内酯的制备

    公开(公告)号:US4324727A

    公开(公告)日:1982-04-13

    申请号:US238980

    申请日:1981-02-27

    IPC分类号: C07D315/00 C07D307/32

    CPC分类号: C07D315/00

    摘要: A process for the preparation of a butyrolactone of the general formula ##STR1## where R.sup.1 is unsubstituted or substituted alkyl or phenyl and R.sup.2 to R.sup.6 are hydrogen or unsubstituted or substituted alkyl or phenyl, wherein a .gamma.-formylcarboxylic acid ester of the formula ##STR2## where R is lower alkyl, is treated with oxygen at an elevated temperature of 60.degree.-150.degree. C.

    摘要翻译: 制备通式为其中R1是未取代或取代的烷基或苯基和R2至R6的丁内酯的方法是氢或未取代的或取代的烷基或苯基,其中式(I)的γ-甲酰基羧酸酯 IMAGE> II,其中R是低级烷基,在60-150℃升高的温度下用氧气处理。

    Process for producing lactones from unsaturated carbonyl compounds
    103.
    发明授权
    Process for producing lactones from unsaturated carbonyl compounds 失效
    从不饱和羰基化合物生产内酯的方法

    公开(公告)号:US4309352A

    公开(公告)日:1982-01-05

    申请号:US209645

    申请日:1980-11-24

    申请人: T. L. Ho

    发明人: T. L. Ho

    CPC分类号: C07D315/00 C07C29/40

    摘要: A method for producing an alkyl substituted lactone including the steps of alkylating an unsaturated ketone with a C.sub.1 -C.sub.12 alkyl organometallic reagent such as a Grignard reagent or an alkali metal alkyl, to form an unsaturated alcohol, and oxidatively cleaving the unsaturated alcohol to form the lactone, and recovering the lactone.

    摘要翻译: 一种制备烷基取代的内酯的方法,包括以下步骤:用C1-C12烷基有机金属试剂如格氏试剂或碱金属烷基烷基化不饱和酮,形成不饱和醇,并将不饱和醇氧化裂解形成 内酯,并回收内酯。

    Method for preparing quaternary ammonium salt of ester-lactone
    104.
    发明授权
    Method for preparing quaternary ammonium salt of ester-lactone 失效
    酯 - 内酯季铵盐的制备方法

    公开(公告)号:US4306070A

    公开(公告)日:1981-12-15

    申请号:US170354

    申请日:1980-07-21

    摘要: A quaternary ammonium salt of an ester-lactone represented by the formula: ##STR1## in which w represents 0 or 1, x and y alternately represent 0 and 1, z has value from 0 to 4, R.sup.i, R.sup.ii, R.sup.iii and R.sup.iv, in instances where w is equal to 0, represent hydrogen or alkyl radicals at least one of which is a hydrocarbyl radical having from 50-200 carbon atoms; in instances where w is equal to 1 at least one of R.sup.i, R.sup.ii, R.sup.iii, R.sup.iv, R.sup.v or R.sup.vi, represents a hydrocarbyl radical of 50-200 carbon atoms and the remaining substituents are hydrogen or lower alkyl radicals, R is a divalent radical having from 2-10 carbon, or carbon and oxygen atoms, R.sup.vii is hydrogen or a hydrocarbyl radical, and X is an anion is provided, as well as a method of preparation and a hydrocarbon lubricating oil composition containing same.

    摘要翻译: 由下式表示的酯 - 内酯的季铵盐:其中w表示0或1,x和y交替表示0和1,z具有0至4的数值,R 1,R 1,R 2i和R w, 在w等于0的情况下,代表氢或烷基,其中至少一个是具有50-200个碳原子的烃基; 在w等于1的情况下,R 1,R 11,R 11i,R w,R v或R vi中的至少一个表示50-200个碳原子的烃基,其余的取代基是氢或低级烷基,R是二价基团 具有2-10个碳或碳和氧原子,Rvii是氢或烃基,并且X是一种阴离子,以及一种制备方法和含有它的烃润滑油组合物。

    Hydrogenation catalyst and method of producing same
    108.
    发明授权
    Hydrogenation catalyst and method of producing same 失效
    氢化催化剂及其制备方法

    公开(公告)号:US4083809A

    公开(公告)日:1978-04-11

    申请号:US716111

    申请日:1976-08-20

    CPC分类号: C07D315/00 B01J23/8926

    摘要: Hydrogenation catalyst and a process for producing gamma-butyrolactone by hydrogenating a feed compound -- selected from the group consisting of maleic acid, succinic acid, maleic anhydride, succinic anhydride, and mixtures of any of the foregoing -- in the vapor phase, in the presence of said catalyst, which is a highly selective elemental Cu-Pd or Cu-Pt catalyst, in order to produce high yields of gamma-butyrolactone and minimize the formation of by-products.

    摘要翻译: 氢化催化剂和通过在气相中氢化来自马来酸,琥珀酸,马来酸酐,琥珀酸酐和任何前述物质的混合物的进料化合物来制备γ-丁内酯的方法 的所述催化剂,其是高选择性元素Cu-Pd或Cu-Pt催化剂,以产生高产率的γ-丁内酯并使副产物的形成最小化。

    Alpha, beta-butenolide preparation
    109.
    发明授权
    Alpha, beta-butenolide preparation 失效
    Alpha,β-丁内酯制剂

    公开(公告)号:US4031114A

    公开(公告)日:1977-06-21

    申请号:US671881

    申请日:1976-03-29

    申请人: Victor P. Kurkov

    发明人: Victor P. Kurkov

    IPC分类号: C07D315/00 C07D307/32

    CPC分类号: C07D315/00

    摘要: A method for preparing an alpha,beta-dehydro-gamma-butyrolactone which comprises contacting a carboxylic acid of the formula ##STR1## wherein R is H or C.sub.1 to C.sub.10 alkyl group, with oxygen and a catalyst comprising a noble metal halide, a variable valence transition metal halide and an alkali metal halide at a temperature between 50.degree. and 300.degree. C and superatmospheric pressure.

    摘要翻译: 一种制备α,β-脱氢-γ-丁内酯的方法,该方法包括使下式的羧酸:其中R为H或C 1至C 10烷基,与氧和包含贵金属卤化物的催化剂,可变的 价态过渡金属卤化物和碱金属卤化物,温度在50〜300℃,超大气压。