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Abstract. Menadione sodium bisulphite (MSB) increased the growth of tomato plants and alfalfa callus and stimulated rooting of mungbean cuttings.Investigations into its effect on auxin metabolism resulted in decreased activities of the enzymes involved in IAA oxidation in tomato plants. The levels of IAA were increased by about 3 to 4 fold following application of MSB to tomato, cucumber, corn and capsicum plants.

The formal synthesis of aklavinone and the first synthesis of 4,11-dideoxy-α-rhodomycinone are described. Oxidative decyanation of the tetracyclic nitrile to the corresponding ketone using a strong base (LDA) constitutes an important strategy in the synthesis of both these compounds.

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