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Succindialdehyde : ウィキペディア英語版
Succinaldehyde

Succinaldehyde or succindialdehyde is an organic compound with the formula (CH2CHO)2. Typical of other dialdehyde, succinaldehyde is highly reactive. Usually, it is handled as the hydrates or methanol-derived acetal. It is a precursor to tropinone. It is used as a crosslinking agent but is less widely used than the related dialdehyde glutaraldehyde.
==Preparation==
Succinaldehyde is generated by the oxidation of THF with chlorine followed by hydrolysis and by the hydroformylation of acrolein derivatives.
In aqueous solution, the molecule hydrates and cyclizes.〔Hardy, P. M.; Nicholls, A. C.; Rydon, H. N. "The hydration and polymerisation of succinaldehyde, glutaraldehyde, and adipaldehyde" J. Chem. Soc., Perkin Trans. 2, 1972, 2270-2278. 〕 In methanol it converts to the cyclic acetal, 2,5-dimethoxyltetrahydrofuran.〔Christian Kohlpaintner, Markus Schulte, Jürgen Falbe, Peter Lappe, Jürgen Weber "Aldehydes, Aliphatic" in Ullmann's Encyclopedia of Industrial Chemistry 2008, Wiley-VCH, Weinheim. 〕

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