JPS5683428A - Preparation of 2-substituted resorcinol - Google Patents
Preparation of 2-substituted resorcinolInfo
- Publication number
- JPS5683428A JPS5683428A JP16018079A JP16018079A JPS5683428A JP S5683428 A JPS5683428 A JP S5683428A JP 16018079 A JP16018079 A JP 16018079A JP 16018079 A JP16018079 A JP 16018079A JP S5683428 A JPS5683428 A JP S5683428A
- Authority
- JP
- Japan
- Prior art keywords
- butylresorcinol
- raw material
- formula
- debutylation
- 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
Links
Abstract
PURPOSE: To prepare the titled compound useful as a raw material of pharmaceuticals and pesticides, etc., easily, in high yield, simply by the reaction of 4,6-di-t- butylresorcinol with an alkyl halide or aralkyl halide in an aqueous alkali solution, followed by debutylation.
CONSTITUTION: The objective compound of formula II (R is alkyl or aralkyl) is prepared by (1) reacting 4,6-di-t-butylresorcinol with a halogen compound of formula RX (X is halogen provided that X is not bonded to the tertiary carbon atom of the R group) (e.g. methyl iodide) in an alkaline aqueous solution, thereby suppressing the debutylation reaction, and (2) debutylating the resulting 2-substituted-4,6-di-t- butylresorcinol. The starting material can also be prepared easily by the tertbutylation of resorcinol, and the by-produced isobutylene can be recycled as the raw material.
USE: Raw material of dyes, pigments, photographic chemicals, etc.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16018079A JPS5683428A (en) | 1979-12-10 | 1979-12-10 | Preparation of 2-substituted resorcinol |
US06/201,746 US4337370A (en) | 1979-11-08 | 1980-10-29 | Process for the preparation of resorcinol derivatives |
FR8023692A FR2469391A1 (en) | 1979-11-08 | 1980-11-06 | RESORCINOL DERIVATIVES AND THEIR PREPARATION |
GB8035753A GB2063259B (en) | 1979-11-08 | 1980-11-06 | Resorcinol derivatives |
IT50096/80A IT1146175B (en) | 1979-11-08 | 1980-11-06 | PROCEDURE FOR THE PREPARATION OF RESORCINOL DERIVATIVES |
DE19803042121 DE3042121A1 (en) | 1979-11-08 | 1980-11-07 | 2-SUBSTITUTED 4,6-DI-TERT.-BUTYLRESORCINOLE, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE |
US06/351,449 US4398047A (en) | 1979-11-08 | 1982-02-23 | 2-Substituted-4,6-di-t-butylresorcinol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16018079A JPS5683428A (en) | 1979-12-10 | 1979-12-10 | Preparation of 2-substituted resorcinol |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5683428A true JPS5683428A (en) | 1981-07-08 |
JPS631927B2 JPS631927B2 (en) | 1988-01-14 |
Family
ID=15709558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16018079A Granted JPS5683428A (en) | 1979-11-08 | 1979-12-10 | Preparation of 2-substituted resorcinol |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5683428A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6016944A (en) * | 1983-07-11 | 1985-01-28 | Honsyu Kagaku Kogyo Kk | Production of 2,4-dichloro-3-methylphenol |
US5276198A (en) * | 1991-08-30 | 1994-01-04 | Sumitomo Chemical Company, Limited | Process for producing 2-methyl-1,3-cyclohexanedione and 2-methylresorcinol |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3725103C1 (en) * | 1987-07-29 | 1988-09-08 | Viscodrive Gmbh | Drive arrangement in a four-wheel-drive vehicle with a clutch for temporarily switching on the non-constantly driven wheels |
-
1979
- 1979-12-10 JP JP16018079A patent/JPS5683428A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6016944A (en) * | 1983-07-11 | 1985-01-28 | Honsyu Kagaku Kogyo Kk | Production of 2,4-dichloro-3-methylphenol |
JPS6160056B2 (en) * | 1983-07-11 | 1986-12-19 | Honshu Chemical Ind | |
US5276198A (en) * | 1991-08-30 | 1994-01-04 | Sumitomo Chemical Company, Limited | Process for producing 2-methyl-1,3-cyclohexanedione and 2-methylresorcinol |
Also Published As
Publication number | Publication date |
---|---|
JPS631927B2 (en) | 1988-01-14 |
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