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    Process for the preparation of vinyltetrazole
    2.
    发明授权
    Process for the preparation of vinyltetrazole 失效
    制备乙烯基噻唑的方法

    公开(公告)号：US3716550A

    公开(公告)日：1973-02-13

    申请号：US3716550D

    申请日：1969-10-29

    申请人： US NAVY

    发明人： JONES O ,  GILLIGAN W ,  MCDONNELL C

    IPC分类号： C07D257/04 ,  C07D55/56

    CPC分类号： C07D257/04

    摘要： Improved processes for the preparation of 1-and 2- alkyl-5vinyltetrazoles which involve the reaction of an ammonium azide and a Beta -dialkylaminopropionitrile in a water solvent and alkylating the product thereof under a carefully maintained pH.

    摘要翻译： 制备1-和2-烷基-5-乙烯基四唑的改进方法涉及水溶剂中的叠氮化铵和β-二烷基氨基丙腈的反应，并在小心维持的pH下对其产物进行烷基化。

    Process for preparing 1h-tetrazole compounds
    7.
    发明授权
    Process for preparing 1h-tetrazole compounds 失效
    制备1H-四唑化合物的方法

    公开(公告)号：US3767667A

    公开(公告)日：1973-10-23

    申请号：US3767667D

    申请日：1971-10-07

    申请人： FUJISAWA PHARMACEUTICAL CO

    发明人： KAMIYA T ,  SAITO Y

    IPC分类号： C07D257/04 ,  C07D55/56

    CPC分类号： C07D501/36 ,  C07D257/04

    摘要： A PROCESS FOR PREPARING 1H-TETRAZOLE COMPOUNDS OF THE FORMULA:

    1-R1,5-R2-1H-TETRAZOLE

    WHEREIN R1 AND R2 ARE EACH HYDROGEN OR A POSSIBLE SUBSTITUENT, WHICH COMPRISES REACTING AN AMINE COMPOUND OF THE FORMULA:

    R1-NH2

    WHEREIN R1 IS AS DEFINED ABOVE, OR ITS SALT WITH AN ORTHOCARBOXYLIC ACID ESTER OF THE FORMULA:

    R2C(OR3)3

    WHEREIN R3 IS LOWER ALKYL AND R2 IS AS DEFINED ABOVE, AND A HYDRAZOIC ACID SALT.