Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1986-07-09
1989-03-21
Miller, Edward A.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260 40, 2604105, 560142, 560144, C07C 678, C07C 6917
Patent
active
048141100
ABSTRACT:
The present invention provides a method of esterifying dihydroxybenzene starting materials to synthesize unsymmetrical diesters in high yield. Many of the resultant unsymmetrical diesters are useful in dry bleaching compositions. The method can be practiced by selectively monoacylating a dihydroxybenzene starting material with an acid anhydride to form an intermediate monoester having the structure ##STR1## which is then acylated to form a diester reaction product having the structure ##STR2## wherein R.sub.1 is greater than R.sub.3 (and both R.sub.1 and R.sub.3 are alkyl groups) and X is a substituent group which does not participate in the esterification (or which can have a protecting group thereon).
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Fong Ronald A.
Rowland Richard R.
Miller Edward A.
The Clorox Company
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