Preparation of benzoic acid ortho-esters and novel compounds of

Details Preparation of benzoic acid ortho-esters and novel compounds of Preparation of benzoic acid ortho-esters and novel compounds of

1986-08-11

1987-10-13

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

C25C 100

Patent

active

046996982

ABSTRACT:
Preparation of aromatic carboxylic acid ortho-esters of the formula I ##STR1## where R is C.sub.1 -C.sub.4 -alkyl and R.sup.1 is H, halogen, alkyl, aryl, heteroaryl, alkoxy, aryloxy, acyl, acyloxy or CN, by electro-oxidizing benzene derivatives of the formula II ##STR2## where R.sup.2 is CH.sub.3 or CH(OR.sub.2), in the presence of an alcohol ROH, a halogenated triarylamine compound and a base, and novel ortho-trialkyl 4-tert-butoxybenzoates, where alkyl is of 1 to 4 carbon atoms.
Ortho-trialkyl 4-tert-butoxybenzoates are scents and are also used to prepared p-hydroxybenzoic acid esters.

REFERENCES:
patent: 4284825 (1981-08-01), Degner et al.
patent: 4539081 (1985-09-01), Degner et al.
patent: 4588482 (1986-05-01), Degner
patent: 4612092 (1986-09-01), Degner et al.
International Journal of Methods in Synthetic Organic Chemistry, Nr. 4, Apr. 1978, pp. 283-284, J. W. Scheeren et al.
J. Chem. Soc. Perkin I (1978), pp. 708-715.

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