Due to the profound extent to which natural products inspire medicinal chemists in drug discovery, there is demand for innovative syntheses of these often complex materials. This article describes the synthesis of tricarbocyclic natural product architectures through an extension of the enantioselective Birch-Cope sequence with intramolecular Friedel-Crafts alkylation reactions. Additionally, pa...

The occurrence of 2 gibberellin-like substances was demonstrated in the developing banana fruit, Musa sapientum, Linn. Chemical and biological evidence led to the tentative identification of the 2 compounds as GA(7) and GA(x) (previously isolated from citrus fruits). Support for such identification was obtained from thin layer chromatography, gradient elution column chromatography, spectrofluor...

The study was undertaken to envisage the effect of growth regulators on preharvest fruit drop and quality of Kinnow mandrin (Citrus reticulata Blanco). Various concentration of 2, 4-D, GA3 and NAA were applied during the last week of November, 2005 to check the impact of various treatments on preharvest fruit drop, yield and fruit quality. Exogenous application of growth regulators significantl...

Summiary. Parameters of the bioassay based on the gibberellin-indluced reducing suigar release of barley endosperm were investigated. Procedures for the rapid handling and processing of utp to several hundred treatments witholut loss in sensitivity of the test are described, and the effects of variations in many aspects of the bioassay were assessed. In general, the variations in varieties, tec...