Production of pinacolone

Details Production of pinacolone Production of pinacolone

1975-12-15

1977-11-22

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 4500

Patent

active

040596346

ABSTRACT:
In the process wherein 4,4,5-trimethyl -1,3-dioxane is contacted with aqueous acid to produce pinacolone, the improvement which comprises effecting the contact in the presence of 2-methyl-but-2-ene, whereby the yield of pinacolone is increased. Advantageously the 2-methyl-but-2-ene is present in approximately equimolar amount with the 4,4,5-trimethyl-1,3-dioxane and the acid is HCl of about 30 to 40% concentration or HBr of about 30 to 50% concentration.

REFERENCES:
patent: 2307894 (1943-01-01), Mikeska
patent: 3062835 (1962-11-01), Signorino
Safarov et al., Chem. Abst., vol. 78, p. 408, (1973).
Nishimura et al., Chem. Abst., vol. 61, (1967).

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