Synthesis of racemic and each enantiomer of 3-methylnonacosanol, a new plant growth regulator from Lowsonia inermis
摘要:
An efficient synthesis of the title compound I in racemic and enantiomeric forms has been developed starting from 10-undecenoic acid. For the enantiomeric synthesis, a lipase catalyzed acylation strategy was employed to prepare the required methyl branched chiron which was subsequently derivatized to give the enantiomers of I. The plant growth regulatory (PGR) assay of I, carried out with hypocotyl cuttings of French beans (Phaseolus vulgaris L.) in Steinberg's nutrient medium revealed appreciable activity at a concentration of 2.5 ppm. The PGR activities of the compound both in racemic and enantiomeric forms were better than 1-triacontanol, the enantiomer, (S)-I being the best test candidate. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.
Synthesis of racemic and each enantiomer of 3-methylnonacosanol, a new plant growth regulator from Lowsonia inermis
摘要:
An efficient synthesis of the title compound I in racemic and enantiomeric forms has been developed starting from 10-undecenoic acid. For the enantiomeric synthesis, a lipase catalyzed acylation strategy was employed to prepare the required methyl branched chiron which was subsequently derivatized to give the enantiomers of I. The plant growth regulatory (PGR) assay of I, carried out with hypocotyl cuttings of French beans (Phaseolus vulgaris L.) in Steinberg's nutrient medium revealed appreciable activity at a concentration of 2.5 ppm. The PGR activities of the compound both in racemic and enantiomeric forms were better than 1-triacontanol, the enantiomer, (S)-I being the best test candidate. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.