EP 0643723 A4 19950510 - HALOGENATION USING HALO-VILSMEIER REAGENT.
Title (en)
HALOGENATION USING HALO-VILSMEIER REAGENT.
Title (de)
HALOGENIERUNG DURCH HALO-VILSMEIER REAGENZ.
Title (fr)
HALOGENATION A L'AIDE D'UN REACTIF HALO-VILSMEIER.
Publication
Application
Priority
- US 81717992 A 19920106
- US 94134892 A 19920904
- US 9300079 W 19930106
Abstract (en)
[origin: WO9314106A1] The invention provides an improved process for the preparation of a halogenated steroidal diene. The process involves the simultaneous transformation of the steroidal 3-one to 3-halo and 17-carboxylic acid to 17-carboxamide in a single reaction without the isolation of an intermediate. The process takes place by reacting the steroidal starting material with a halogen-Vilsmeier reagent.
IPC 1-7
IPC 8 full level
C07J 3/00 (2006.01); C07J 9/00 (2006.01); C07J 41/00 (2006.01); C07J 43/00 (2006.01); C07J 75/00 (2006.01)
IPC 8 main group level
C07C 235/00 (2006.01)
CPC (source: EP KR)
C07J 3/005 (2013.01 - EP); C07J 9/00 (2013.01 - EP); C07J 41/0066 (2013.01 - EP); C07J 43/00 (2013.01 - KR)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 9314106A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9314106 A1 19930722; AP 370 A 19941110; AP 9300473 A0 19930131; AU 3434893 A 19930803; AU 666167 B2 19960201; BG 98887 A 19950531; BR 9305786 A 19970218; CA 2127272 A1 19930722; CN 1077201 A 19931013; CZ 161994 A3 19950315; EP 0643723 A1 19950322; EP 0643723 A4 19950510; FI 943214 A0 19940705; FI 943214 A 19940705; HU 9402030 D0 19940928; HU T68273 A 19950628; IL 104302 A0 19930513; IL 104302 A 19980222; JP H07505138 A 19950608; KR 940703849 A 19941212; MA 22761 A1 19931001; MX 9300025 A 19940131; NO 942535 D0 19940705; NO 942535 L 19940705; NZ 246788 A 19961126; OA 09961 A 19951211; RU 94038223 A 19970420; SI 9300006 A 19930930; SK 80094 A3 19941207; TW 300226 B 19970311
DOCDB simple family (application)
US 9300079 W 19930106; AP 9300473 A 19930105; AU 3434893 A 19930106; BG 9888794 A 19940705; BR 9305786 A 19930106; CA 2127272 A 19930106; CN 93101175 A 19930106; CZ 161994 A 19930106; EP 93902957 A 19930106; FI 943214 A 19940705; HU 9402030 A 19930106; IL 10430293 A 19930104; JP 51254293 A 19930106; KR 19940702343 A 19940705; MA 23050 A 19930105; MX 9300025 A 19930106; NO 942535 A 19940705; NZ 24678893 A 19930106; OA 60533 A 19940704; RU 94038223 A 19940705; SI 9300006 A 19930106; SK 80094 A 19930106; TW 82100552 A 19930129