Structural investigation of lac resin-II

Singh, H. ; Madhav, R. ; Seshadri, T. R. ; Subramanian, G. B. V. (1967) Structural investigation of lac resin-II Tetrahedron, 23 (12). pp. 4795-4800. ISSN 0040-4020

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The three fractions of lac rein viz., hard resin I, hard resin II and soft resin have been cleaved with hydriodic acid followed by deiodination. The products were separated into fatty acids and terpene acids. The former have been studied by GLC and data on the nature and distribution of the chain lengths and their relative amounts were thus obtained. Cleavage of the different fractions of the resin with hydrogen chloride followed by alkaline hydrolysis gave the total aleuritic acid quantitatively. Based on the above results, the possibility of the presence of alkali stable linkages in lac resin and the amount of aleuritic acid liberated only by acid cleavage have been determined.

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