JPS55139375A - Production of hydroxyflavan - Google Patents

Production of hydroxyflavan

Info

Publication number
JPS55139375A
JPS55139375A JP4835579A JP4835579A JPS55139375A JP S55139375 A JPS55139375 A JP S55139375A JP 4835579 A JP4835579 A JP 4835579A JP 4835579 A JP4835579 A JP 4835579A JP S55139375 A JPS55139375 A JP S55139375A
Authority
JP
Japan
Prior art keywords
resorcin
preferably
reaction
aliphatic ketone
catalyst
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.)
Pending
Application number
JP4835579A
Other versions
JPS6157308B2 (en
Inventor
Tsutomu Chiyoda
Kazuo Matsunaga
Original Assignee
Sumitomo Chem 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 Sumitomo Chem Co Ltd filed Critical Sumitomo Chem Co Ltd
Priority to JP4835579A priority Critical patent/JPS6157308B2/ja
Publication of JPS55139375A publication Critical patent/JPS55139375A/en
Publication of JPS6157308B2 publication Critical patent/JPS6157308B2/ja
Application status is Expired legal-status Critical

Links

Abstract

PURPOSE: The reaction between an aliphatic ketone and resorcin is effected in the presence of a specific amount of inorganic salt as a catalyst to produce a high-purity hydroxyfuran in high yield in a short time.
CONSTITUTION: The reaction of 1mol of an aliphatic ketone such as acetone or methyl ethyl ketone with three or more moles of resorcin is conducted in the presence of an inorganic acid such as hydrochloric or sulfuric acid as a catalyst in an amount of more than 0.1W0.5, preferably 0.2W0.5, equivalent per mole of the resorcin at 20W80, preferably 40W60°C to give title compound. The reaction is preferably carried out by continuously adding the aliphatic ketone to a mixture of resorcin and the inorganic acid in water. The feed rate is higher than 0.25, preferably 0.25W0.75 equivalent/hr mole of resorcine.
COPYRIGHT: (C)1980,JPO&Japio
JP4835579A 1979-04-18 1979-04-18 Expired JPS6157308B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4835579A JPS6157308B2 (en) 1979-04-18 1979-04-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4835579A JPS6157308B2 (en) 1979-04-18 1979-04-18

Publications (2)

Publication Number Publication Date
JPS55139375A true JPS55139375A (en) 1980-10-31
JPS6157308B2 JPS6157308B2 (en) 1986-12-06

Family

ID=12801045

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4835579A Expired JPS6157308B2 (en) 1979-04-18 1979-04-18

Country Status (1)

Country Link
JP (1) JPS6157308B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6127980A (en) * 1984-07-18 1986-02-07 Mitsui Petrochem Ind Ltd Preparation of hydroxyflavan compound
EP0346808A2 (en) * 1988-06-13 1989-12-20 Sumitomo Chemical Company, Limited Resist composition
EP0688770A2 (en) 1994-06-23 1995-12-27 Sumitomo Chemical Company, Limited Process for preparing hydroxyflavan compounds
US5556995A (en) * 1992-08-07 1996-09-17 Sumitomo Chemical Co., Ltd. Process for the preparation of polyhydric phenol compounds
JP2006312733A (en) * 2005-04-05 2006-11-16 Hodogaya Chem Co Ltd Resorcin/methyl ethyl ketone/formalin resin
JP2006312731A (en) * 2005-04-05 2006-11-16 Hodogaya Chem Co Ltd Manufacturing method of ketone-modified resorcin/formalin resin

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62187416U (en) * 1986-05-16 1987-11-28
JPS632256U (en) * 1986-06-23 1988-01-08
JPH02132354U (en) * 1989-03-31 1990-11-02

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6127980A (en) * 1984-07-18 1986-02-07 Mitsui Petrochem Ind Ltd Preparation of hydroxyflavan compound
JPH0244472B2 (en) * 1984-07-18 1990-10-04 Mitsui Petrochemical Ind
EP0346808A2 (en) * 1988-06-13 1989-12-20 Sumitomo Chemical Company, Limited Resist composition
JPH0284650A (en) * 1988-06-13 1990-03-26 Sumitomo Chem Co Ltd Positive type resist composition
EP0346808B1 (en) * 1988-06-13 1996-09-11 Sumitomo Chemical Company, Limited Resist composition
US5556995A (en) * 1992-08-07 1996-09-17 Sumitomo Chemical Co., Ltd. Process for the preparation of polyhydric phenol compounds
EP0688770A2 (en) 1994-06-23 1995-12-27 Sumitomo Chemical Company, Limited Process for preparing hydroxyflavan compounds
US5698717A (en) * 1994-06-23 1997-12-16 Sumitomo Chemical Company, Limited Process for preparing hydroxyflavan compounds
JP2006312733A (en) * 2005-04-05 2006-11-16 Hodogaya Chem Co Ltd Resorcin/methyl ethyl ketone/formalin resin
JP2006312731A (en) * 2005-04-05 2006-11-16 Hodogaya Chem Co Ltd Manufacturing method of ketone-modified resorcin/formalin resin

Also Published As

Publication number Publication date
JPS6157308B2 (en) 1986-12-06

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