The Absolute Stereochemistry At C-12 In 12-Hydroxylated Neoclerodane Diterpenoids

A Lourenco,Mc Delatorre,B Rodriguez,N Harada,H Ono, H Uda,M Bruno,F Piozzi,G Savona

TETRAHEDRON（1992）

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摘要

A study of the H-1 and C-13 NMR spectra, variation of the molecular rotations and behaviour in the exciton chirality method of several C-12 epimers of 12-hydroxy-, 12-acetoxy- and 12-benzoyloxy-neo-clerodane derivatives has been achieved, providing useful alternative methods for establishing the C-12 absolute configuration this kind of compounds.

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关键词

NEOCLERODANE DITERPENES,EPIMERIC C-12 ALCOHOLS, ACETATES AND BENZOATES,ABSOLUTE CONFIGURATION AT C-12,DIFFERENCES IN H-1 AND C-13 NMR SPECTROSCOPY AND MOLECULAR ROTATIONS,APPLICATION OF THE CD EXCITON CHIRALITY METHOD,X-RAY CRYSTALLOGRAPHIC ANALYSIS

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