Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfur halides
Reexamination Certificate
2005-02-08
2005-02-08
Kumar, Shailendra (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Sulfur halides
C562S821000, C562S827000, C562S828000
Reexamination Certificate
active
06852883
ABSTRACT:
In the process according to the invention for the manufacture of an alkanesulphonyl chloride RCH2—SO2Cl by oxidative chlorolysis of the corresponding mercaptan RCH2—SH, the mercaptan and water are introduced into the reaction mixture in the form of a dispersion of water in the mercaptan.This makes it possible to obtain both an alkanesulphonyl chloride of very good quality and a hydrochloric acid of commercial grade.
REFERENCES:
patent: 3248423 (1966-04-01), Stratton et al.
patent: 3600136 (1971-08-01), Giolito et al.
patent: 3626004 (1971-12-01), Guertin
patent: 3993692 (1976-11-01), Giolito et al.
patent: 4280966 (1981-07-01), Hubenett
patent: 4956494 (1990-09-01), Husain et al.
patent: 6441229 (2002-08-01), Shaw
patent: 1 811 768 (1969-09-01), None
patent: 2 845 918 (1980-05-01), None
patent: 1 598 279 (1970-08-01), None
patent: 2 083 422 (1971-03-01), None
patent: 52-8283 (1977-01-01), None
patent: 52-008283 (1977-01-01), None
patent: 52-20970 (1977-02-01), None
patent: 52-020970 (1977-02-01), None
CA:135:212601 abs of JP2001247537 Sep. 11, 2001.*
CA:140:6407 abs of JP2003342252 Dec. 2003.*
Bradley D. Christie, et al., “Synthesis of Optically Pure Pipecolates from L-Asparagine. Application to the Total Synthesis of (+)- Apovincamine through Amino Acid Decarbonylation and Iminium Ion Cyclization”, J. Org. Chem. 1985, 50, pp. 1239-1246.
International Preliminary Examination Report (PCT/IPEA/409 and PCT/IPEA/416) (translated) issued for PCT/FR01/02799, 2002.
Haurat Gisele
Ollivier Jean
Atofina
Kumar Shailendra
Smith , Gambrell & Russell, LLP
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