95081-75-7Relevant academic research and scientific papers
An efficient synthesis of dihydro- and tetrahydropyrans via oxonium-ene cyclization reaction
Bondalapati, Somasekhar,Reddy, Udagandla C.,Saha, Pipas,Saikia, Anil K.
experimental part, p. 3428 - 3438 (2011/06/20)
An efficient method has been developed for the synthesis of 2,3-dihydropyrans and 4-methylenetetrahydropyrans from aldehydes and substituted homoallyl alcohols in benzene mediated by boron trifluoride etherate in good yields. The reaction proceeds via oxonium-ene reaction.
Tin(II) trifluoromethanesulfonate-catalyzed highly selective synthesis of 2-substituted 4-methylenetetrahydropyrans from trimethyl{2-[2-(trimethylsiloxy)ethyl]allyl}silane and acetals
Oriyama,Ishiwata,Suzuki
, p. 569 - 570 (2007/10/03)
A variety of 2-substituted 4-methylenetetrahydropyrans are easily produced by the reaction of acetals with trimethyl{2-[2-(trimethylsiloxy)ethyl]allyl}silane under the influence of a catalytic amount of tin(II) trifluoromethanesulfonate.
EPOXIDATION OF 2-ARYL-4-METHYL-3,6-DIHYDROPYRANS AND REACTION OF THE PRODUCTS WITH PIPERIDINE
Ubatullin, U. G.,Syurina, L. V.,Vasil'eva, S. A.,Semenov, T. B.,Safarov, M. G.
, p. 1200 - 1202 (2007/10/02)
2-Aryl-4-methyl-4,5-epoxytetrahydropyrans, which react with piperidine regioselectively with trans-diaxial cleavage of the oxide ring at the least substituted carbon atom, were synthesized by the reaction of 2-aryl-4-methyl-3,6-dihydropyrans with peracids.
