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US 5,489,714 AGranted
Method of synthesizing 2,6-dinitro benzyl compounds
AssigneePPG Industries, Inc.
InventorsCharles F. Kahle, II, Raphael O. Kollah, Gregory J. McCollum
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Abstract
Described is a method of preparing dinitrobis(hydroxymethyl)benzene, useful as a photoreactive monomer, from a derivative of stilbene. Also disclosed is a novel dinitrocarbomethoxybenzaldehyde compound useful as an intermediate.
Claims1
A method of making dinitrobis(hydroxymethyl)benzene comprising:
- (a) ozonolytically cleaving dinitro carbomethoxymethoxy stilbene to form dinitrocarbomethoxybenzaldehyde;
- (b) reduction of the product of (a) to dinitrocarboisopropoxybenzyl alcohol;
- (c) hydrolysis of the product of (b) to dinitrocarboxylbenzyl alcohol;
- and
- (d) reduction of the product of (c) to dinitrobis(hydroxymethyl)benzene.
2 more elements
Dependencies are inferred from the claim text.