Plant growth regulators (PGR’S) having either stimulating or retarding activity are
non-pollutive and cost-effective compounds to bring about changes of desired productivity in
agricultural crops. Among these compounds one group comprises of the aliphatic nature with remarkable and definite activity in the physiology of plant growth. This paper covers syntheses of two unreported PGR analogues (VIII) and (V) from threo-aleuritic acid“, 9, 10
16-trihydroxyhexadecanoic acid (I), the major constituent acid of lac, believed to be present
to the extent of 35%
