5-ethyl-2-imino-3-(2'-cyanobiphenyl-4-yl)methyl-1,3,4-thiadiazoline.hydrobromide 在
magnesium sulfate 、 正己烷 作用下,
以
氯仿 、 sodium hydroxide 为溶剂,
反应 1.0h,
以whereby 2.99 g of the title compound was obtained的产率得到5-ethyl-2-imino-3-(2'-cyanobiphenyl-4-yl)methyl-1,3,4-thiadiazoline
参考文献:
名称:
Process for producing tetrazolylated biphenylmethane derivatives
PROCESS FOR PRODUCING TETRAZOLYLATED BIPHENYLMETHANE DERIVATIVES
申请人:WAKUNAGA SEIYAKU KABUSHIKI KAISHA
公开号:EP0842932A1
公开(公告)日:1998-05-20
The present invention relates to a process for producing a tetrazolylated biphenylmethane derivatives (6) or salts thereof in accordance with the below-described reaction scheme wherein R1 represents an alkyl; R2 represents H, etc.; Z represents a halogen, etc.; and A represents a cycloalkene, etc. According to the above process, a tetrazolylated biphenylmethane derivative can be industrially and advantageously produced with short steps.
本发明涉及一种按照下述反应方案生产四唑基联苯甲烷衍生物(6)或其盐的工艺,其中 R1 代表烷基;R2 代表 H 等;Z 代表卤素等;A 代表环烯等。根据上述工艺,四唑基联苯甲烷衍生物可在短时间内工业化生产。
NOVEL REAGENT FOR TETRAZOLE SYNTHESIS AND PROCESS FOR PRODUCING TETRAZOLES THEREWITH
申请人:CHUGOKU KAYAKU KABUSHIKI KAISHA
公开号:EP0838458A1
公开(公告)日:1998-04-29
Analkali metal azide and zinc chloride are used in combination as a tetrazole forming agent when producing 1H-tetrazoles of the formula (II):
(where R is any substituent) from carbonitriles of the formula (I):
R-CN (I)
(where R has the same meaning as defined above). The tetrazole forming agent permits many kinds of solvents to be used and can in principle be used with any carbonitriles. In addition, the use of inexpensive zinc chloride leads to cost reduction.
在生产式(II)的 1H 四唑时,碱金属叠氮化物和氯化锌可联合用作四唑形成剂:
(其中 R 为任何取代基):
R-CN (I)
(其中 R 的含义与上述定义相同)。四氮唑形成剂允许使用多种溶剂,原则上可用于任何腈类。此外,使用廉价的氯化锌可以降低成本。
EP838458
申请人:——
公开号:——
公开(公告)日:——
US5912353A
申请人:——
公开号:US5912353A
公开(公告)日:1999-06-15
Process for producing tetrazolylated biphenylmethane derivatives
申请人:Wakunaga Seiyaku Kabushiki Kaisha
公开号:US05912353A1
公开(公告)日:1999-06-15
The present invention relates to a process for producing a tetrazolylated biphenylmethane derivatives (6) or salts thereof in accordance with the below-described reaction scheme wherein R.sup.1 represents an alkyl; R.sup.2 represents H, etc.; Z represents a halogen, etc.; and A represents a cycloalkene, etc. According to the above process, a tetrazolylated biphenylmethane derivative can be industrially and advantageously produced with short steps.