.alpha.-Halogeno-acetals of ethylenically unsaturated aldehydes

Details .alpha.-Halogeno-acetals of ethylenically unsaturated aldehydes .alpha.-Halogeno-acetals of ethylenically unsaturated aldehydes

1977-02-23

1978-05-02

Mars, Howard T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260607AR, 260607AL, C07C 4330, C07C 4100

Patent

active

040874648

ABSTRACT:
.alpha.-Halogeno-acetals of ethylenically-unsaturated aldehydes of the formula: ##STR1## are disclosed, which are prepared by reacting a hypohalite of a saturated aliphatic tertiary alcohol with an ethylenically-unsaturated aldehyde of the formula: ##STR2## in which: R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5, which may be identical or different, represent hydrogen or straight or branched alkyl of from 1 to 6 carbon atoms especially methyl or ethyl, X represents halogen, especially chlorine or bromine, R.sub.6 represents straight or branched alkyl of from 1 to 6 carbon atoms especially methyl or ethyl; and n represents zero or 1. Such .alpha.-halogeno acetals may be used to introduce an ethylenically-unsaturated aldehyde unit into a monoene or polyene radical.

REFERENCES:
Shosta kovski et al., Chem. Abst. 53, 7002h, 1959.

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