JPS54144393A - Preparation of imidazo2,1-bthiazole derivative - Google Patents

Preparation of imidazo2,1-bthiazole derivative

Info

Publication number
JPS54144393A
JPS54144393A JP5265278A JP5265278A JPS54144393A JP S54144393 A JPS54144393 A JP S54144393A JP 5265278 A JP5265278 A JP 5265278A JP 5265278 A JP5265278 A JP 5265278A JP S54144393 A JPS54144393 A JP S54144393A
Authority
JP
Japan
Prior art keywords
compound
derivative
halogen
alkali
reaction
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.)
Granted
Application number
JP5265278A
Other languages
Japanese (ja)
Other versions
JPS5527066B2 (en
Inventor
Osamu Maruyama
Tadashi Sato
Takeshi Kawashima
Makoto Yokoyama
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.)
Kohjin Holdings Co Ltd
Kojin Co Ltd
Original Assignee
Kohjin Holdings Co Ltd
Kojin Co Ltd
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 Kohjin Holdings Co Ltd, Kojin Co Ltd filed Critical Kohjin Holdings Co Ltd
Priority to JP5265278A priority Critical patent/JPS54144393A/en
Publication of JPS54144393A publication Critical patent/JPS54144393A/en
Publication of JPS5527066B2 publication Critical patent/JPS5527066B2/ja
Granted legal-status Critical Current

Links

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  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

PURPOSE: To prepare the title compound useful as an anthelmintic agent, in high yield, by halogenating an isothioureide derivative easily obtained from a novel thiourea derivative, and subjecting the product to the condensation ring-closure in the presence of an alkali in one step.
CONSTITUTION: The compound IV is prepared by the following steps: (1) reaction of a compound V with a thiocyanate in the presence of an acylating agent to afford a novel compound I (R is H, halogen, NO2; R' is acyl); (2) hydrolysis of the compound I with an alkali to afford the compound II; (3) reaction of the compound II with a compound of formula XCH2CH2Y (X is halogen; Y is OH, halogen) to give a compound III; (4) conversion of the compound III to a halogen derivative with a halogenation agent (pref. thionyl chloride), and (5) the condensation cyclization reaction of the halogen derivative in the presence of an alkali at 40W100°C.
COPYRIGHT: (C)1979,JPO&Japio
JP5265278A 1978-05-04 1978-05-04 Preparation of imidazo2,1-bthiazole derivative Granted JPS54144393A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5265278A JPS54144393A (en) 1978-05-04 1978-05-04 Preparation of imidazo2,1-bthiazole derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5265278A JPS54144393A (en) 1978-05-04 1978-05-04 Preparation of imidazo2,1-bthiazole derivative

Publications (2)

Publication Number Publication Date
JPS54144393A true JPS54144393A (en) 1979-11-10
JPS5527066B2 JPS5527066B2 (en) 1980-07-17

Family

ID=12920779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5265278A Granted JPS54144393A (en) 1978-05-04 1978-05-04 Preparation of imidazo2,1-bthiazole derivative

Country Status (1)

Country Link
JP (1) JPS54144393A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57187019U (en) * 1981-05-23 1982-11-27

Also Published As

Publication number Publication date
JPS5527066B2 (en) 1980-07-17

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