Chemistry of Natural Compounds p. 594 - 601 (1998)
Update date:2022-07-29
Topics:
Kuzakov
Shmidt
The alkylation of some phenols with an allyl 6-oxolabdane alcohol in the presence of the clay askanite-bentonite has been investigated. It has been shown that during the reaction intermediate ortho-adducts of substitution in the aromatic nucleus are cyclized into chroman derivatives containing a bicyclic terpene residue - 2-methyl-2-(6'-oxo-Δ7'-tetranorlabd-12'-yl)chromans. Performing the reaction in the presence of heterogeneous catalysts imposes limitations on the yields of certain products.
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Doi:10.1016/S0022-328X(02)01160-9
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