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Chemistry of dihydro-1,4-dioxin III a new method for the preparation of α,α′-dihydroxy ketones from ketones and aldehydes

✍ Scribed by Marcel Fetizon; Pierre Goulaouic; Issam Hanna

Publisher
Elsevier Science
Year
1985
Tongue
French
Weight
168 KB
Volume
26
Category
Article
ISSN
0040-4039

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## Abstract α‐Acyloxy aldehydes (**2a,b**) react with 1,1‐dimethoxypropene (**1**) in the presence of ZnCl~2~ to yield 2,2‐dimethoxy‐3‐methyloxetanes (**3a,b**). Stronger electron‐withdraxing acyl groups are necessary for the analogous conversion ofα‐acyloxy ketones (**2c,d,e**). Hydrolysis of the