MD29C2 - The method of obtaining of a 4-Acyl-2,3 - Dehydro-1,4 Benzoxazine or Benzthiazine. - Google Patents

The method of obtaining of a 4-Acyl-2,3 - Dehydro-1,4 Benzoxazine or Benzthiazine.

Info

Publication number
MD29C2
MD29C2 MD94-0022A MD940022A MD29C2 MD 29 C2 MD29 C2 MD 29C2 MD 940022 A MD940022 A MD 940022A MD 29 C2 MD29 C2 MD 29C2
Authority
MD
Moldova
Prior art keywords
dehydro
benzoxazine
acyl
benzthiazine
combinations
Prior art date
Application number
MD94-0022A
Other languages
Romanian (ro)
Russian (ru)
Other versions
MD29B1 (en
Inventor
Moser Hans
Original Assignee
Novartis Ag
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
Priority claimed from SU843825504A external-priority patent/SU1321374A3/en
Application filed by Novartis Ag filed Critical Novartis Ag
Publication of MD29B1 publication Critical patent/MD29B1/en
Publication of MD29C2 publication Critical patent/MD29C2/en

Links

Landscapes

  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)

Abstract

The invention relates to heterocyled combinations particular to 4-acyl-2,3 dehydro-1?4-benzoxazine (BO) or 4-acyl-2,3 dehydrobenzothiazine (BT) that can be used in agricultural administration to protect the crops from phytotoxic influence of herbicides.The aim is the creation of combinations more efficient from the mentioned class and their destination BO and BT are synthesized corresponding from 2,3-dehydro-1,4-benzoxazine or 2,3 dehydro-1,4-benzthiazine and acylchloride in the medium of benzol with the carbonate sedum base at room, temperature.The produced products are crystal clear and oily liquid substances. The try BO and BT shows that the relative protective action constitutes 83-88% against 13% for the know combination.Picture 3.
MD94-0022A 1983-12-12 1994-02-09 The method of obtaining of a 4-Acyl-2,3 - Dehydro-1,4 Benzoxazine or Benzthiazine. MD29C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56056483A 1983-12-12 1983-12-12
SU843825504A SU1321374A3 (en) 1983-12-12 1984-12-11 Method of producing 4-acyl-2,3-dihydro-1,4-benzoxazines or benzthiazines

Publications (2)

Publication Number Publication Date
MD29B1 MD29B1 (en) 1994-06-30
MD29C2 true MD29C2 (en) 1994-11-30

Family

ID=26666016

Family Applications (1)

Application Number Title Priority Date Filing Date
MD94-0022A MD29C2 (en) 1983-12-12 1994-02-09 The method of obtaining of a 4-Acyl-2,3 - Dehydro-1,4 Benzoxazine or Benzthiazine.

Country Status (2)

Country Link
LV (1) LV5247A3 (en)
MD (1) MD29C2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867444A (en) * 1972-07-17 1975-02-18 Stauffer Chemical Co Schiff{3 s base dichloroacetamides
US3931313A (en) * 1972-07-17 1976-01-06 Stauffer Chemical Company Schiff's base dichloroacetamides
US4393206A (en) * 1981-03-24 1983-07-12 Bayer Aktiengesellschaft Process for the production of 2,3-Dihydro-4H-1,4-benzothiazines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867444A (en) * 1972-07-17 1975-02-18 Stauffer Chemical Co Schiff{3 s base dichloroacetamides
US3931313A (en) * 1972-07-17 1976-01-06 Stauffer Chemical Company Schiff's base dichloroacetamides
US4393206A (en) * 1981-03-24 1983-07-12 Bayer Aktiengesellschaft Process for the production of 2,3-Dihydro-4H-1,4-benzothiazines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Cerere expusă publicului DE nr. 2828293, In. cl. C 07 D 215/08, 1980. *

Also Published As

Publication number Publication date
LV5247A3 (en) 1993-10-10
MD29B1 (en) 1994-06-30

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Legal Events

Date Code Title Description
CHPR Change of proprietorship

Free format text: NOVARTIS AG, CH

IF99 Valid patent on 19990615

Free format text: EXPIRES: 20041210