Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PRODUCTION METHOD FOR THIOCARBONYL COMPOUND
Document Type and Number:
WIPO Patent Application WO/2017/130679
Kind Code:
A1
Abstract:
Provided is a method with which it is possible to produce a high-purity thiocarbonyl compound via an industrially practicable production method by removing a sulfurizing agent-derived byproduct via a simple post-reaction purification method. This production method for a thiocarbonyl compound (B) includes, in the following order: a step (1), in which a carbonyl compound (A), a diphosphetane-disulfide compound (C), and a solvent (X) are heated, yielding a mixture; and a step (2), in which the mixture is alkali-treated with an alkali aqueous solution having a concentration of at most 25 wt%.

Inventors:
MIYAZAKI KATSUAKI (JP)
OKAWA HARUKI (JP)
OZAWA SHOICHI (JP)
Application Number:
PCT/JP2017/000423
Publication Date:
August 03, 2017
Filing Date:
January 10, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
C07C327/48; C07C325/02; C07C327/22; C07C327/26; C07C327/36; C07C327/42; C07D307/85
Domestic Patent References:
WO2014010737A12014-01-16
Foreign References:
JP2016011286A2016-01-21
JP2001500470A2001-01-16
JP2013147607A2013-08-01
JP2012021068A2012-02-02
JP2010031223A2010-02-12
Other References:
MICHAEL P. CAVA ET AL.: "THIONATION REACTIONS OF LAWESSON'S REAGENTS", TETRAHEDRON, vol. 41, no. 22, 1985, pages 5061 - 5087, XP026645720
WITOLD PRZYCHODZEN,: "Mechanism of the Reaction of Lawesson's Reagent with N-Alkylhydroxamic Acids", EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, May 2005 (2005-05-01), pages 2002 - 2014, XP055402663, ISSN: 1099-0690
THOMAS J. CURPHEY: "Thionation with the Reagent Combination of Phosphorus Pentasulfide and Hexamethyldisiloxane", THE JOURNAL OF ORGANIC CHEMISTRY, vol. 67, no. 18, 2002, pages 6461 - 6473, XP055402664
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
Download PDF: