Preparation of unsaturated nitriles using a boron oxide promoter
    1.
    发明授权
    Preparation of unsaturated nitriles using a boron oxide promoter 失效
    使用氧化硼促进剂制备不饱和腈

    公开(公告)号:US3898268A

    公开(公告)日:1975-08-05

    申请号:US38290173

    申请日:1973-07-26

    发明人: DRAKE CHARLES A

    CPC分类号: C07C255/00

    摘要: A boron oxide promotes the reaction of an olefin and an unsaturated nitrile, such as the formation of a monoadduct product used as an intermediate in the production of di-nitriles. The boron oxide process increases product yield. Employing a saturated nitrile as reaction diluent helps reduce polymer buildup on the walls of the reaction vessel, and further improves product yield.

    摘要翻译: 氧化硼促进烯烃和不饱和腈的反应,例如在二腈生产中用作中间体的单加成产物的形成。 氧化硼工艺提高了产品的产率。 使用饱和腈作为反应稀释剂有助于减少反应容器壁上的聚合物积聚,进一步提高产物产率。

    Electrolytic hydrodimerization process improvement

    公开(公告)号:US3898140A

    公开(公告)日:1975-08-05

    申请号:US49780874

    申请日:1974-08-15

    申请人: MONSANTO CO

    CPC分类号: C25B3/105

    摘要: In a process for hydrodimerizing an olefinic nitrile, amide or ester by electrolyzing an aqueous solution of the olefinic starting material, quaternary ammonium or phosphonium cations and a conductive salt, formation of hydrogen at the cathode can be substantially inhibited and the current efficiency of the process significantly increased by including in the solution a nitrilocarboxylic acid compound such as a salt of ethylenediaminetetraacetic acid. Particularly good results are obtained when the solution also contains a boric acid, a condensed phosphoric acid or an alkali metal salt thereof.

    Electrochemical adiponitrile process
    5.
    发明授权
    Electrochemical adiponitrile process 失效
    电化学己二腈工艺

    公开(公告)号:US3871976A

    公开(公告)日:1975-03-18

    申请号:US39572073

    申请日:1973-09-10

    申请人: STANDARD OIL CO

    发明人: CONNOLLY JOHN F

    CPC分类号: C25B3/10 C25B3/105

    摘要: Electrochemical hydrodimerization of acrylonitrile to adiponitrile in an electrochemical, preferably undivided, cell containing acrylonitrile dissolved in an aqueous electrolyte, wherein ammonia is added to the cell and oxidized at or near the anode.

    摘要翻译: 在电化学,优选不分割的,含有溶解在水性电解质中的丙烯腈的电池中将丙烯腈与己二腈的电化学氢化反应,其中将氨加入到电池中并在阳极处或附近氧化。

    Hydrocyanation of Olefins
    6.
    发明授权
    Hydrocyanation of Olefins 失效
    烯烃的氢化

    公开(公告)号:US3864380A

    公开(公告)日:1975-02-04

    申请号:US43402074

    申请日:1974-01-17

    申请人: DU PONT

    摘要: A process for the hydrocyanation of nonconjugated ethylenically unsaturated organic compounds using certain zerovalent nickel complexes as catalysts and as a promoter a boron compound of the group consisting of (R''OBO)3, (R''BO)3, (R''2B)2O, R''B(OH)2 and R''2BOH wherein R'' is an alkyl or aryl radical of one to 10 carbon atoms at a temperature in the range of -50* to 200* C.

    摘要翻译: 使用某些零价镍络合物作为催化剂和作为助催化剂的非共轭烯属不饱和有机化合物的氢化氰化方法由(R'OBO)3,(R'BO)3,(R'B)2O ,R'B(OH)2和R'2BOH,其中R'为1-10个碳原子的烷基或芳基,在-50℃至200℃的温度范围内。

    Terephthalonitrile process
    7.
    发明授权
    Terephthalonitrile process 失效
    TEREPHTHALONITRILE工艺

    公开(公告)号:US3862202A

    公开(公告)日:1975-01-21

    申请号:US37990873

    申请日:1973-07-16

    CPC分类号: C07C255/00

    摘要: In the process of separating terephthalonitrile from a gaseous ammoxidation product stream, the improvement which comprises cooling said hot product stream to a temperature above 150*C and below 165*C and separating solid crystals of high purity terephthalonitrile in high yield.

    摘要翻译: 在从气态氨氧化产物流中分离对苯二腈的过程中,包括将所述热产物流冷却至高于150℃且低于165℃的温度并以高产率分离高纯度对苯二腈的固体晶体的改进。

    Preparation of gamma-cyanobutyraldehyde
    8.
    发明授权
    Preparation of gamma-cyanobutyraldehyde 失效
    γ-氨基丁酸甲酯的制备

    公开(公告)号:US3855266A

    公开(公告)日:1974-12-17

    申请号:US36939073

    申请日:1973-06-12

    申请人: STAMICARBON

    发明人: BEEKHUIS G

    CPC分类号: C07C255/00

    摘要: A process for recovering gamma -cyanobutyraldehyde from the acid hydrolysis mixture obtained by the acid hydrolysis of Nsubstituted gamma -cyanobutyraldimine is disclosed, wherein the gamma -cyanobutyraldehyde is extracted from such acid hydrolysis mixture with methyl ethyl ketone, nitromethane, dichloromethane, chloroform or 1,2-dichloroethane. The extraction process of the present invention allows much lower amounts of solvents to be used than were used in previous prior art processes, and the gamma -cyanobutyraldehyde is readily separated from the solvent.

    摘要翻译: 公开了通过N-取代的γ-氰基丁醛酰亚胺的酸水解获得的酸水解混合物中回收γ-氰基丁醛的方法,其中将γ-氰基丁醛从甲基乙基酮,硝基甲烷,二氯甲烷,氯仿或这些酸水解混合物中提取出来 1,2-二氯乙烷。

    Preparation of alpha-oximinonitriles
    9.
    发明授权
    Preparation of alpha-oximinonitriles 失效
    阿尔法 - 奥昔米酚的制备

    公开(公告)号:US3849469A

    公开(公告)日:1974-11-19

    申请号:US39283173

    申请日:1973-08-29

    申请人: BAYER AG

    发明人: JAUTELAT M

    CPC分类号: C07D307/54

    摘要: 1. A PROCESS FOR THE PREPARATION OF AN A-OXIMINONITRILE OF THE FORMULA

    NC-C(-R)=N-OH

    IN WHICH R IS ALKYL, ALKENYL OR ALKYNYL RADICAL OF 2-12 CARBON ATOMS, A HALOGENOALKYL, CYANOALKYL, NITROALKYL OR HYDROXYALKYL RADICAL OF 1-18 CARBON ATOMS, OR A CYCLOALKYL RADICAL, COMPRISING REACTING AN A-IMINOITRILE OF THE FORMULA

    NC-C(-R)=N-R1

    IN WHICH R1 IS ONE OF THE RADICALS SPECIDIED FOR T, OR IA AN ARYL OR A HETEROCYCLIC RADICAL, WIITH AN ACID-ADDITION SALT OF HYDROXYLAMINE IN THE PRESENCE OF AN INERT DILUTENT AT A TEMPERATURE OF ABOUT 20* TO 150* C.

    Cleavage of enol ethers and ketals
    10.
    发明授权
    Cleavage of enol ethers and ketals 失效
    ENOL ETHERS和KETALS的清洁

    公开(公告)号:US3839407A

    公开(公告)日:1974-10-01

    申请号:US33657073

    申请日:1973-02-28

    申请人: ALLIED CHEM

    发明人: ROGIC M VITRONE J

    CPC分类号: C07C255/00 C07C2603/16

    摘要: 1. A PROCESS FOR CLEAVAGE OF A BOND IN A KETAL, JOINING THE KETAL GROUP AND A METHYLENIC CARBON ATOM, WHICH PROCESS COMPRISES: FORMING A REACTION MIXTURE BY PROVIDING SUCH KETAL, IN WHICH ANY SUBSTITUENTS ARE APROTIC, IN AN ANHYDROUS LIQUID REACTION MEDIUM COMPRISING AN EFFECTIVE PROPORTION OF A POLAR APROTIC SOLVENT INERT PER SE AT THE REACTION TEMPERATURE TO SAID KETAL; AND BY PROVIDING IN SAID REACTION MEDIUM (1) NITROUS ACID ESTER IN AMOUNT NOT GREATER THAN ABOUT TWO MOLAR EQUIVALENTS PER MOL OF UNREACTED KETAL PROVIDED; (2) ACID CAPABLE OF EXCHANGING ITS ANION WITH THE ESTER GROUP OF SAID NITROUS ACID ESTER UNDER THE REACTION CONDITIONS, IN TOTAL AMOUNT NOT GREATER THAN ABOUT ONE EQUIVALENT PER MOL OF TOTAL NITRITE PROVIDED IN THE REACTION MIXTURE; AND (3) A PRIMARY ALCOHOL CONTAINING AT LEAST TWO CARBON ATOMS IN AMOUNT INCLUDING SUCH AS IS FORMED IN THE REACTION AND SUCH AS IS ADDED TO THE MIXTURE, OF AT LEAST ABOUT 1/2 EQUIVALENT PER MOL OF KETAL PROVIDED IN THE REACTIN MIXTURE; AND SUBJECTING THE REACTION MIXTURE TO TEMPERATURE IN THE RANGE BETWEEN (-70*C.) AND THE BOILING POINT OF THE SOLVENT UNDER THE PREVAILING PRESSURE, AND TIME SUFFICIENT FOR PRODUCING REACTION IN SAID REACTION MIXTURE AT THE SAID BOND WITH CLEAVAGE THEREOF AND FORMATION OF A CYANO GROUP AND AN ESTER GROUP AT THE POINT OF CLEAVAGE.