JPS5610179A - Synthesis of benzoxazole - Google Patents

Synthesis of benzoxazole

Info

Publication number
JPS5610179A
JPS5610179A JP8566179A JP8566179A JPS5610179A JP S5610179 A JPS5610179 A JP S5610179A JP 8566179 A JP8566179 A JP 8566179A JP 8566179 A JP8566179 A JP 8566179A JP S5610179 A JPS5610179 A JP S5610179A
Authority
JP
Japan
Prior art keywords
alkyl
oxime
formula
amide
reacting
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
JP8566179A
Other languages
Japanese (ja)
Other versions
JPS613339B2 (en
Inventor
Shinsaku Fujita
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP8566179A priority Critical patent/JPS5610179A/en
Publication of JPS5610179A publication Critical patent/JPS5610179A/en
Publication of JPS613339B2 publication Critical patent/JPS613339B2/ja
Granted legal-status Critical Current

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

Abstract

PURPOSE: To prepare the titled compound useful as an intermediate of medicines, etc., easily, in high yield, by reacting an oxime such as 2,4-dihydroxy-acetophenone oxime with phosphorus oxychloride in the presence of an amide such as N,N-dimethylacetamide under mild conditions.
CONSTITUTION: A benzoxazole of formula III (e.g. 2-methyl-6-hydroxybenzoxazole) is prepared by reacting an oxime of formula I (R1 is alkyl; R2 is halogen, OH, acyloxy, alkyl, alkyloxy, alkylthio, nitro, cyano, phenyl, etc., n is 0W4) with phosphorus oxychloride in the presence of an amide of formula II (R3 is H or alkyl; R4, R5 are alkyl; R3 and R4 or R4 and R5 may together form a ring).
EFFECT: A 2,5-dihydroxyacetophenone oxime derivative which is easily hydrolyzed at high temperature, can be used as a raw material.
USE: Intermediate of organic compounds for photographic use.
COPYRIGHT: (C)1981,JPO&Japio
JP8566179A 1979-07-06 1979-07-06 Synthesis of benzoxazole Granted JPS5610179A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8566179A JPS5610179A (en) 1979-07-06 1979-07-06 Synthesis of benzoxazole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8566179A JPS5610179A (en) 1979-07-06 1979-07-06 Synthesis of benzoxazole

Publications (2)

Publication Number Publication Date
JPS5610179A true JPS5610179A (en) 1981-02-02
JPS613339B2 JPS613339B2 (en) 1986-01-31

Family

ID=13865003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8566179A Granted JPS5610179A (en) 1979-07-06 1979-07-06 Synthesis of benzoxazole

Country Status (1)

Country Link
JP (1) JPS5610179A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594426A (en) * 1980-01-17 1986-06-10 Fuji Photo Film Co., Ltd. Benzoxazole derivative intermediates for synthesis of dye releasing redox compounds

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61296549A (en) * 1985-06-24 1986-12-27 Sharp Corp Production of optical memory element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594426A (en) * 1980-01-17 1986-06-10 Fuji Photo Film Co., Ltd. Benzoxazole derivative intermediates for synthesis of dye releasing redox compounds

Also Published As

Publication number Publication date
JPS613339B2 (en) 1986-01-31

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