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A Short and Simple Synthesis of Ketene Acetals

โœ Scribed by Argade, A. B.; Joglekar, B. R.


Book ID
117992920
Publisher
Taylor and Francis Group
Year
1993
Tongue
English
Weight
226 KB
Volume
23
Category
Article
ISSN
0039-7911

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## SYNOPSIS A new, facile, and high-yield synthesis of ketene acetals derived from readily available and inexpensive starting materials has been developed. For example, an a,@-unsaturated aldehyde can be condensed with an alkane diol to afford a 2-vinyl substituted cyclic acetal. This latter compo

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a-Aroyl substituted bis-ketene N,S-acetals 3-6 with a polyrnethylene linkage, N,N'-bis(l-methylthio-2-aroy1)vinyl polymethylene diamines, were synthesized by reactions between a-aroyl ketene dithioacetals 1 and polymethylene diamines 2 in moderate yields.