2,2-Dibutyl-1,3,2-dioxastannolens

DOI: 10.1039/P19830000875

Source and publish data:

Journal of the Chemical Society. Perkin transactions I p. 875 - 882 (1983)

Update date:2022-08-03

Topics:

Authors:

Davies, Alwyn G.

Hawari, Jalal A.-A.

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Article abstract of DOI:10.1039/P19830000875

Acyloins or their enediol carbonates (vinylene carbonates) react with dibutyltin oxide or dibutyltin dimethoxide to give 2,2-dibutyl-1,2,3-dioxastannolens .

119Sn N.m.r. and 119mSn Moessbauer spectra, and molecular weight measurements suggest that, in the solid state or in concentrated solution, the dioxastannolen (A) is associated, but the monomer is present in dilute solution.On heating, (A) decomposes into benzil and products which appear to be derived from dibutylstannylene, and it reacts with oxygen to give benzil and products derived from dibu- tyltin oxide.Acetyl chloride reacts to give cis-stilbene diacetate, but less reactive acylating agents (e.g. acetic anhydride or benzoyl chloride) give an increasing amount of the trans-diester and cyclic anhydrides (e.g. phthalic anhydride), and diacid chlorides (e.g. phosgene) give cyclic esters.

Full text of DOI:10.1039/P19830000875

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