Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1995-10-26
1998-03-03
Henley, III, Raymond
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568687, C07C 4100
Patent
active
057236852
ABSTRACT:
The preparation of monovinyl ethers of the general formula I ##STR1## in which A stands for a chemical bond or for a methylene or ethylene group, the radicals R.sup.1 and R.sup.2 independently stand for hydrogen, alkyl, cycloalkyl, or aryl groups or R.sup.1 and R.sup.2 together form a C.sub.3 -C.sub.5 alkylene bridging member, by the reaction of a diol of the general formula II ##STR2## in which the variables have the above meanings, with acetylene in the presence of a base, in which the reaction is carried out at 150.degree.-250.degree. C. under an acetylene partial pressure of 5-25 bar until 40-80% of the diol has been converted, at which point the reaction is stopped and the monovinyl ether of the formula I is isolated.
REFERENCES:
patent: 1959927 (1934-05-01), Reppe et al.
patent: 3657360 (1972-04-01), Carluccio et al.
Reppe et al. (Liebigs Ann. Chem. 601 (1956) 81 Synthesis of Some Derivatives. . ., Mikant'ev et al. Plenum Pub. Corp. 1990, 157-161.
Chem. Abst., vol. 48, No. 2, Jan. 25, 1954, Shostakovskii et al., vol. 586g .
Heider Marc
Helfert Herbert
Henkelmann Jochem
Ruhl Thomas
Schmidt-Radde Martin
BASF - Aktiengesellschaft
Henley III Raymond
Jones Dwayne C.
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