GB1298642A - Halopyrazoles - Google Patents

Halopyrazoles

Info

Publication number
GB1298642A
GB1298642A GB20465/71A GB2046571A GB1298642A GB 1298642 A GB1298642 A GB 1298642A GB 20465/71 A GB20465/71 A GB 20465/71A GB 2046571 A GB2046571 A GB 2046571A GB 1298642 A GB1298642 A GB 1298642A
Authority
GB
United Kingdom
Prior art keywords
ester
group
salt
reaction
hydrolysis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB20465/71A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pharmacia and Upjohn Co
Original Assignee
Upjohn Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Upjohn Co filed Critical Upjohn Co
Publication of GB1298642A publication Critical patent/GB1298642A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D231/16—Halogen atoms or nitro radicals

Abstract

1298642 Halopyrazoles UPJOHN CO 19 April 1971 [19 Feb 1970] 20465/71 Heading C2C Compounds of formula wherein each X is halogen, m is 2 or 3, n is 0 to 3, R is hydrogen, C 1-10 alkyl or C 1-10 alkenyl, the group RCHC n H 2n not containing more than 11 carbon atoms, and A is the carboxyl group, or a salt or C 1-8 alkyl ester thereof, the hydroxymethyl group or a C 1-9 alkanoyl ester thereof, the cyano group, or a carboxylic acid amide group, optionally substituted by listed groups, are prepared by one or more of (a) reaction of a halopyrazole salt with a haloester or halonitrile, (b) reduction of an ester to an alcohol, 4-dehalogenation occurring simultaneously, (c) ester hydrolysis, (d) reaction of an ester or acid halide with an amine, (e) dehydration of an amide to a nitrile with phosphorus pentoxide or phosphorus oxychloride, or (f) salification or salt hydrolysis. The products are herbicides and plant growth regulants.
GB20465/71A 1970-02-19 1971-04-19 Halopyrazoles Expired GB1298642A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1287170A 1970-02-19 1970-02-19

Publications (1)

Publication Number Publication Date
GB1298642A true GB1298642A (en) 1972-12-06

Family

ID=21757138

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20465/71A Expired GB1298642A (en) 1970-02-19 1971-04-19 Halopyrazoles

Country Status (10)

Country Link
BE (1) BE778653Q (en)
CA (1) CA940928A (en)
CS (1) CS172919B2 (en)
DE (1) DE2107715A1 (en)
FR (1) FR2078796A5 (en)
GB (1) GB1298642A (en)
IL (1) IL36035A (en)
PH (1) PH10472A (en)
RO (2) RO61927A2 (en)
ZA (1) ZA71331B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111941A (en) * 1976-05-14 1978-09-05 The Upjohn Company Thienyl pyrazole thioamides
US4153712A (en) * 1975-09-30 1979-05-08 Ciba-Geigy Corporation Pyrazolylacetanilide compounds and fungicidal compositions

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE795881A (en) * 1972-02-23 1973-08-23 Upjohn Co TRIBROMOPYRAZOLES AND THEIR PREPARATION
DE2835158A1 (en) * 1978-08-10 1980-02-21 Bayer Ag SUBSTITUTED PYRAZOLE DERIVATIVES AND METHOD FOR THE PRODUCTION THEREOF

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153712A (en) * 1975-09-30 1979-05-08 Ciba-Geigy Corporation Pyrazolylacetanilide compounds and fungicidal compositions
US4111941A (en) * 1976-05-14 1978-09-05 The Upjohn Company Thienyl pyrazole thioamides

Also Published As

Publication number Publication date
ZA71331B (en) 1971-10-27
BE778653Q (en) 1972-05-16
IL36035A (en) 1974-07-31
CS172919B2 (en) 1977-01-28
PH10472A (en) 1977-05-11
RO65652A (en) 1980-06-15
DE2107715A1 (en) 1971-08-26
FR2078796A5 (en) 1971-11-05
IL36035A0 (en) 1971-03-24
RO61927A2 (en) 1977-05-20
CA940928A (en) 1974-01-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee