A new method for the preparation of .DELTA.-alkoxy-.ALPHA.,.BETA.-unsaturated aldehydes and polyenals.
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概要
- 論文の詳細を見る
Dienoxysilanes (<B>2</B>) react with acetals in the presence of TiCl<SUB>4</SUB> and also in the coexistence of TiCl<SUB>4</SUB> and Ti(O<I><SUP>i</SUP></I>Pr)<SUB>4</SUB> to give δ-alkoxy-α,β-unsaturated aldehydes (<B>3–5</B>) in good yields. In the presence of 1,8-diazabicyclo[5.4.0] undec-7-ene or 1,5-diazabicyclo[4.3.0]non-5-ene and molecular sieves 3A or 4A, the elimination reaction of δ-alkoxyl group of α,β-unsaturated aldehydes (<B>3–5</B>) proceeds smoothly to afford the corresponding polyenals in good yields.
- 公益社団法人 日本化学会の論文
著者
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Ishida Akihiko
Department Of Anatomy Faculty Of Medicine University Of The Ryukyus
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Mukaiyama Teruaki
Department Of Applied Chemistry Faculty Of Science Science University Of Tokyo
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Ishida Akihiko
Department of Chemistry, Faculty of Science, The University of Tokyo
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