220370-93-4Relevant academic research and scientific papers
Synthesis of cyclic ethers from 3- and 4-hydroxyalkylphosphonium salts
Okuma, Kentaro,Sakai, Osami,Hayano, Tetsuji,Shioji, Kosei,Matsuyama, Haruo
, p. 2209 - 2213 (2007/10/03)
The reaction of 6-methylene-1,3-dioxepanes derived from 3-hydroxyalkyltriphenylphosphonium salts and paraformaldehyde with trimethylsilyl trifluoromethanesulfonate in the presence of N,N- diisopropylethylamine yielded novel 4-formyltetrahydropyrans. 3-Met
Novel ring contraction of dioxepanes to tetrahydropyrans. Reaction of dioxepanes with trimethylsilyl trifluoromethanesulfonate
Okuma, Kentaro,Hayano, Tetsuji,Shioji, Kosei,Matsuyama, Haruo
, p. 2171 - 2174 (2007/10/03)
Reaction of 5-methylene-1,3-dioxepanes derived from oxaphospholanes and paraformaldehyde with trimethylsilyl trifluoromethanesulfonate in the presence of a base yielded novel, exo formyl tetrahydropyran derivatives in good yields. (C) 2000 Elsevier Science Ltd.
Formation of 5-methylene-1,3-dioxepanes by the reaction of 2,2,2- triphenyl-1,2λ5-oxaphospholanes with paraformaldehyde
Okuma, Kentaro,Tanaka, Yuichiro,Shuzui, Ichiro,Shioji, Kosei
, p. 125 - 130 (2007/10/03)
Reaction of 2,2,2-triphenyl-1,23λ5-oxaphospholanes with paraformaldehyde yielded novel 7-membered cyclic methylene acetals (5- methylene-1,3-dioxepanes) in good yields. Phosphonium betaines reacted with paraformaldehyde to give new betaines, wh
