Title:
ポリオール、特にグリセロールタイプのポリオールからのジチオカルバメートの製造方法
Document Type and Number:
Japanese Patent JP5837887
Kind Code:
B2
Abstract:
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.
Inventors:
Francois Jerome
Rodolph de Souza
Joel Barrow
Yannick Puiyo
Rodolph de Souza
Joel Barrow
Yannick Puiyo
Application Number:
JP2012545393A
Publication Date:
December 24, 2015
Filing Date:
December 21, 2010
Export Citation:
Assignee:
Center National de la Recherche Scientific
International Classes:
C07C333/20; C07D295/20
Domestic Patent References:
| JP2003238979A | ||||
| JP2008531752A | ||||
| JP52000028B1 | ||||
| JP54145654A | ||||
| JP2009519286A |
Foreign References:
| US3407222 | ||||
| FR2735130A1 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro