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Cyclobutendion und methylencyclobutenon. Synthese, dienophile reaktivität und exo, endo-selektivität

✍ Scribed by Hans-Dieter Martin; Alfred Oftring; Rüdiger Iden; Evelyn Schwichtenberg; Hans-Joachim Schiwek

Publisher
Elsevier Science
Year
1982
Tongue
French
Weight
204 KB
Volume
23
Category
Article
ISSN
0040-4039

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Synthesis and Reactivity of 3‐Oxazolines. 3‐Oxazolines 1 have been prepared from α‐hydroxy aldehydes, ammonia, water and a second oxo compound (aldehyde or ketone) in a one‐pot reaction. Carboxylic acid chlorides add to the azomethine bond of 1 to yield 3‐acyl‐4‐chlorooxazolidines 2. 4‐Hydroxy and