Preparation of vinyl ethers

Details Preparation of vinyl ethers Preparation of vinyl ethers

1988-06-30

1990-01-02

Moyer, Donald B.

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

Organic compounds

Oxygen containing

568579, 568626, 568663, 568667, 568686, C07C 4128

Patent

active

048914517

ABSTRACT:
Vinyl ethers of the formula (I) ##STR1## where R.sup.1 to R.sup.3 are identical or different and are each hydrogen, a straight-chain or branched alkyl or alkenyl radical of not more than 12 carbon atoms, halogen-substituted alkyl, a cycloalkyl or cycloalkenyl radical of 5 to 8 carbon atoms, an aryl, alkylaryl, alkenylaryl, aralkyl or aralkenyl radical of 6 to 16 carbon atoms, halogen-substituted aryl or a heterocyclic radical and furthermore R.sup.1 and R.sup.2 or R.sup.1 and R.sup.3, together with the carbon atom to which they are bonded, may form a cycloalkane, cycloalkene or heterocyclic structure, and R.sup.4 is alkyl, alkylaryl or aralkyl, are prepared by a process in which an alcohol is eliminated from an acetal or ketal of the formula (II) ##STR2## where R.sup.1 to R.sup.4 have the above meanings, in the presence of borosilicate and/or iron silicate zeolites as catalysts.

REFERENCES:
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patent: 3709973 (1973-01-01), Maltby et al.
patent: 4208305 (1980-06-01), Kouwenhoven et al.
patent: 4238318 (1980-12-01), Kouwenhoven et al.
patent: 4268420 (1981-05-01), Klotz
patent: 4401637 (1983-08-01), Marosi et al.
patent: 4456582 (1984-06-01), Marosi et al.
European Search Report.

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