Preparation of methyl isopropenyl ketone

Details Preparation of methyl isopropenyl ketone Preparation of methyl isopropenyl ketone

1990-07-30

1991-12-10

Reamer, James H.

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

Organic compounds

Oxygen containing

C07C 4575

Patent

active

050720511

ABSTRACT:
Methyl isopropenyl ketone is produced from methyl ethyl ketone and paraformaldehyde under mild reaction conditions utilizing a catalyst comprising a halogen acid salt of a secondary amine and (a) a non-soluble solid oxide of an element selected from Groups IB, IIIA, IVA, IVB, VA, VB, VIB and VIII of the periodic table, or (b) a carboxylic acid. Temperatures of 120-150 and pressures of 700-1400 kpa are preferred; co-products may include ethyl vinyl ketone.

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Mironov et al., "Synthesis of alpha, beta-unsaturated Ketones", Yaroslavl' Technological Institute, translated from Zhurnal Prikladnoi Khimii, vol. 36, No. 3, pp. 654-662, Mar. 1963.

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