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    Method for preparing dithiocarbamates in particular from polyols of the glycerol type
    1.
    发明授权
    Method for preparing dithiocarbamates in particular from polyols of the glycerol type 有权
    特别是由甘油型多元醇制备二硫代氨基甲酸盐的方法

    公开(公告)号：US08772526B2

    公开(公告)日：2014-07-08

    申请号：US13517335

    申请日：2010-12-21

    申请人： Francois Jerome ,  Rodolphe De Sousa ,  Joel Barrault ,  Yannick Pouilloux

    发明人： Francois Jerome ,  Rodolphe De Sousa ,  Joel Barrault ,  Yannick Pouilloux

    IPC分类号： C07C333/00

    CPC分类号： C07C333/20 ,  C07D295/21

    摘要： The present invention concerns a method for the synthesis of glycerol dithiocarbamates or bis-dithiocarbamates (GDTCs) in which a reaction medium comprising (1) a carbonate selected from diethyl carbonate, dimethyl carbonate and ethylene or propylene carbonate associated with a glycerol type polyol in the presence of a basic catalyst or (2) a cyclic carbonate comprising five ring members, in a solvent medium, is supplemented with a primary or secondary amine in the presence of carbon disulphide, and the GDTC formed is recovered. In particular, a glycerol type polyol is brought into the presence of diethyl carbonate in the presence of a catalyst, then a primary or secondary amine is added to the reaction medium in the presence of carbon disulphide, and the GDTC formed is recovered. The invention can be used for one-step synthesis of glycerol dithiocarbamates directly from glycerol as the starting material and solvent. This method involves glycerol, diethyl carbonate, carbon disulphide (CS2) and a primary or secondary amine to produce glycerol dithiocarbamates; the glycerol/NaOH phase can be recycled 6 times without a noticeable drop in yield; the ethyl acetate is also recycled after each extraction.

    摘要翻译： 本发明涉及一种用于合成甘油二硫代氨基甲酸酯或双二硫代氨基甲酸酯（GDTC）的方法，其中反应介质包含（1）选自碳酸二乙酯，碳酸二甲酯和碳酸亚乙酯的碳酸酯， 存在碱性催化剂或（2）包含五个环成员的环状碳酸酯在溶剂介质中，在二硫化碳存在下用伯胺或仲胺补充，并回收形成的GDTC。 特别地，在催化剂存在下使甘油型多元醇进行碳酸二乙酯的存在，然后在二硫化碳的存在下向反应介质中加入伯胺或仲胺，回收形成的GDTC。 本发明可用于直接从甘油作为原料和溶剂一步合成甘油二硫代氨基甲酸酯。 该方法包括甘油，碳酸二乙酯，二硫化碳（CS2）和伯胺或仲胺以产生甘油二硫代氨基甲酸酯; 甘油/ NaOH相可以回收6次，而产量不会明显下降; 乙酸乙酯在每次萃取后也循环使用。

    METHOD FOR PREPARING DITHIOCARBAMATES IN PARTICULAR FROM POLYOLS OF THE GLYCEROL TYPE
    2.
    发明申请
    METHOD FOR PREPARING DITHIOCARBAMATES IN PARTICULAR FROM POLYOLS OF THE GLYCEROL TYPE 有权
    用于制备特别优选甘露糖类多糖的二异氰酸酯的方法

    公开(公告)号：US20120264941A1

    公开(公告)日：2012-10-18

    申请号：US13517335

    申请日：2010-12-21

    申请人： Francois Jerome ,  Rodolphe De Sousa ,  Joel Barrault ,  Yannick Pouilloux

    发明人： Francois Jerome ,  Rodolphe De Sousa ,  Joel Barrault ,  Yannick Pouilloux

    IPC分类号： C07C333/18 ,  C07C31/20 ,  C07C31/22 ,  C07C333/20 ,  C07D295/21

    CPC分类号： C07C333/20 ,  C07D295/21

    摘要： The present invention concerns a method for the synthesis of glycerol dithiocarbamates or bis-dithiocarbamates (GDTCs) in which a reaction medium comprising (1) a carbonate selected from diethyl carbonate, dimethyl carbonate and ethylene or propylene carbonate associated with a glycerol type polyol in the presence of a basic catalyst or (2) a cyclic carbonate comprising five ring members, in a solvent medium, is supplemented with a primary or secondary amine in the presence of carbon disulphide, and the GDTC formed is recovered. In particular, a glycerol type polyol is brought into the presence of diethyl carbonate in the presence of a catalyst, then a primary or secondary amine is added to the reaction medium in the presence of carbon disulphide, and the GDTC formed is recovered. The invention can be used for one-step synthesis of glycerol dithiocarbamates directly from glycerol as the starting material and solvent. This method involves glycerol, diethyl carbonate, carbon disulphide (CS2) and a primary or secondary amine to produce glycerol dithiocarbamates; the glycerol/NaOH phase can be recycled 6 times without a noticeable drop in yield; the ethyl acetate is also recycled after each extraction.

    摘要翻译： 本发明涉及一种用于合成甘油二硫代氨基甲酸酯或双二硫代氨基甲酸酯（GDTC）的方法，其中反应介质包含（1）选自碳酸二乙酯，碳酸二甲酯和与丙三醇型多元醇的碳酸亚丙酯的碳酸酯 存在碱性催化剂或（2）包含五个环成员的环状碳酸酯在溶剂介质中，在二硫化碳存在下用伯胺或仲胺补充，并回收形成的GDTC。 特别地，在催化剂存在下使甘油型多元醇进入碳酸二乙酯的存在下，然后在二硫化碳存在下将伯胺或仲胺加入到反应介质中，回收形成的GDTC。 本发明可用于直接从甘油作为原料和溶剂一步合成甘油二硫代氨基甲酸酯。 该方法包括甘油，碳酸二乙酯，二硫化碳（CS2）和伯胺或仲胺以产生甘油二硫代氨基甲酸酯; 甘油/ NaOH相可以回收6次，而产量不会明显下降; 乙酸乙酯在每次萃取后也循环使用。