Process for the preparation of trans-1,1,2-triphenyl-but-1-ene d

Details Process for the preparation of trans-1,1,2-triphenyl-but-1-ene d Process for the preparation of trans-1,1,2-triphenyl-but-1-ene d

1988-10-27

1990-10-02

Hollrah, Glennon H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C07C21308

Patent

active

049609378

ABSTRACT:
The invention concerns the direct preparation of trans-1,1,2-triphenyl-but-1-ene derivatives having the general formula 1 by dehydration of carbinols having the general formula 2 by heating in a strongly hydrochloric or sulphuric acid medium with the exclusion of organic solvents. ##STR1##

REFERENCES:
patent: 4536516 (1985-08-01), Harper et al.
Robertson et al. "Synthesis of E and Z Isomers of the Antiestrogen Tamoxifen, etc.", J. Org. Chem 47 2387-2393 (1982).
Journal of Chromatography, "Separation of Tamoxifen Geometric Isomers & Metabolites by Bonded-Phase B-Cyclodextrin Chromatography", Armstrong et al., vol. 414 (1987), pp. 192-196.
Acta Chimica Academine Scientiarum Hungavicae, "Synthesis and Structure Determination of Geometric Isomers of 1-Aryl-2-Ethyl-1,2-Diphenylethylenes by .sup.1 H-NMR Spectroscopy", pp. 69-74 (1979).

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