ACYL SUBSTITUTION his chapter differs from preceding ones in that it deals with several related classes of compounds rather than just one. Included are 1. Acyl chlorides, RCCI 2. Carboxylic acid anhydrides, RCOCR 3. Esters of carboxylic acids, RCOR'99
Definition of pain A signal of disease Unpleasant sensation localized to a part of the body Penetrating or tissue destructive process stabbing burning twisting tearing squeezing Bodily or emotional reaction