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(12) PATENT APPLICATION PUBLICATION
(19) INDIA (21) Application No.: 1167/MUM/2004 A
(22) Date of filing of Application: 01/11/2004 (43) Publication Date: 09/06/2006
(54) Title of the invention: AN IMPROVED PROCESS FOR PREPARATION OF FIPRONIL, AN
INSECTICIDE
(51) International classification : C07D 231/44,
C07D 401/04
(31) Priority Document No : NIL
(32) Priority Date : NIL
(33) Name of priority country : NIL
(86) International Application No : NIL
and Filing Date : NIL
(87) International Publication No : NIL
(61) Patent of addition to :
Application No
NIL
(62)
Filed on : N.A.
Divisional to Application No : NIL
Filed on : N.A.
(57) Abstract:
(71) Name of Applicant:
GHARDA CHEMICALS LTD.
Address of the Applicant:
MIDC, B-27/29, PHASE I, DOMBIVLI
(E), 421203, DIST.THANE,
MAHARASHTRA, INDIA.
(72) Name of the Inventor:
1. KEKI HORMUSJI GHARDA
2. ASHOKKUMAR MAGANLAL
MALTE
3. PULINATTU CHERIAN JOSEPH
4. SURESHKUMAR DATTATRAYA
PARKAR
5. SHEKHAR VISHWANANTH
SATHE
6. PRAGNESH DALPATRAM
DAMANIA
Filed U/S 5(2) before The Patents
(Amendment) Act, 2005: NO
A process for preparation of Fipronil (I) from 5-Amino-1-(2,6-dichloro-4-trifluoromethyl)-3-cyano-4trifluoromethyl
thio pyrazole (II) by oxidation in trichloro acetic acid enriched medium.
Drawing Sheets: NIL
Total Pages: 09.
Fig. Nil
The Patent Office Journal 09/06/2006 10861