Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1989-06-13
1991-04-16
Lone, Werren B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568763, C07C 39215, C07C 3711
Patent
active
050084712
ABSTRACT:
As a process for preparing a compound of the formula ##STR1## in which both Rs are H or --OH comprising the steps: a. of treating the ethyl ester of caffeic acid with a trialkylsilyl chloride at ambient conditions in equimolar proportions in the presence of a base;
REFERENCES:
patent: 4644085 (1987-02-01), Drewes et al.
Gaylord "Reduction with Complex Metal Hydrides" pp. 1007-1024 Interscience Pub., Inc. NY (1956).
Drews Siegfried
Kundig Hans
Pegel Karl H.
Wenteler George L.
Lone Werren B.
Rooperol (N.A.)
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