Preparation of 3-memory-4,5-methylenedioxybenzaldehyde

Details Preparation of 3-memory-4,5-methylenedioxybenzaldehyde Preparation of 3-memory-4,5-methylenedioxybenzaldehyde

1988-01-28

1991-03-26

Chan, Nicky

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31764

Patent

active

050030914

ABSTRACT:
3-Methoxy-4,5-methylenedioxybenzaldehyde is facilely and improvedly prepared by reacting 4,5-dihydroxy-3-methoxybenzaldehyde with a dihalomethane in a two-phase reaction medium and at a pH of from 7 to 12.

REFERENCES:
patent: 3840605 (1974-10-01), Gordon
patent: 3992432 (1976-11-01), Napier et al.
patent: 4427666 (1984-01-01), Munes et al.
Freeman et al., Tetrahedron Letters, No. 38, pp. 3251-3254 (1975).
Fujita et al., Chemical Abstracts., vol. 85, No. 46191w, "Aromatic Alkylenedioxy Compounds".
Iinuma et al., Yakugaku Zasshi, vol. 103, No. 9 (1983), "Synthesis of New Flavones of Bauhinia Championii in Formosa".

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