# US 4,398,047 A · 2-Substituted-4,6-di-t-butylresorcinol

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- Number: US 4,398,047 A
- Document ID: US4398047A
- Status: Granted
- Kind: A
- Application number: 06/351,449
- Filed: 1982-02-23
- Granted: 1983-08-09
- Earliest claimed: 1979-11-08
- Assignees: Sumitomo Chemical Company, Limited
- Inventors: Yukihisa Takisawa; Shinichi Hasegawa
- Web page: https://patentgrep.com/patent/US4398047A

## CPC

- C07C 39/15: with all hydroxy groups on non-condensed rings {, e.g. phenylphenol}
- C07C 37/18: by condensation involving halogen atoms of halogenated compounds
- C07C 37/50: by reactions decreasing the number of carbon atoms (C07C37/04, C07C37/045, C07C37/055, C07C37/08 take precedence)
- C07C 39/08: Dihydroxy benzenes; Alkylated derivatives thereof
- C07C 39/19: containing carbon-to-carbon double bonds but no carbon-to-carbon triple bonds
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS

## Abstract

2-Substituted-4,6-di-t-butylresorcinol represented by the general formula: ##STR1## wherein R represents a straight or branched alkyl group having 1 to 20 carbon atoms, a straight or branched alkenyl group having 2 to 20 carbon atoms and at least one double bond, or an aralkyl group, wherein no tertiary carbon atom of R is directly bonded to the benzene nucleus, is prepared by allowing 4,6-di-t-butylresorcinol to react with a halogen compound represented by the general formula: RX wherein R has the same meaning as defined above, and X represents a halogen atom, excluding the X bonded to a tertiary carbon of R, in an aqueous alkali solution. By further debutylization of the 2-substituted-4,6-t-butylresorcinol, 2-substituted resorcinol represented by the general formula: ##STR2## wherein R has the same meaning as defined above, but the tertiary carbon of R is free from direct bonding to the benzene nucleus, is prepared.

## Claims

### Claim 1

2-Substituted-4-,6-di-t-butylresorcinol represented by the general formula: ##STR7## wherein R represents a straight or branched alkyl group having 1 to 20 carbon atoms, a straight or branched alkenyl group having 2 to 20 carbon atoms and at least one double bond, or an aralkyl group, wherein no tertiary carbon atoms of R is bonded directly to the benzene nucleus.