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Stereochemical structures of pyrethrosin, cyclopyrethrosin acetate and isocyclopyrethrosin acetate

โœ Scribed by Shinobu Iriuchijima; Saburo Tamura


Publisher
Elsevier Science
Year
1967
Tongue
French
Weight
273 KB
Volume
8
Category
Article
ISSN
0040-4039

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๐Ÿ“œ SIMILAR VOLUMES


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From the oleoresin of European larch (Larix europaea D. C. 1 H. Wienhaus et al. (1,Z) isolated a compound which they named larixyl acetate (C22H3603; m.p. 6Za; [a], +67")+. On hydrolysis this compound furnished a diterpenoid diol named larixol (C!2,,H3402; m. p.

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The title reaction is found synthetically useful and the stereochemical study has revealed that carbocationic intermediates are involved in the reaction of endo-2-acetoxynorcarane, its epimer, and acetates of cis-and &on.5-carveol with trimethylaluminum. Alkylation' of alcoholic substrates R'OH v& t