65646-58-4Relevant articles and documents
One-pot, three-component synthesis of 4-Aryl-5,6-dihydropyran via prins-friedel-crafts reaction
Reddy, Udagandla C.,Saikia, Anil K.
supporting information; experimental part, p. 1027 - 1032 (2010/06/22)
An efficient method for the synthesis of 4-aryldihydropyrans has been developed from the reaction of aldehydes or epoxides with homopropargylic alcohols in the presence of arenes promoted by boron trifluoride etherate. Georg Thieme Verlag Stuttgart - New York.
SYNTHESIS OF SUBSTITUTED 5,6- AND 3,6-DIHYDRO-2H-PYRANS BY ACID CONDENSATION OF ISOBUTYLENE AND α-METHYLSTYRENE WITH ALIPHATIC ALDEHYDES
Romanov, N. A.,Kantor, E. A.,Karakhanov, R. A.,Rakhmankulov, D. L.
, p. 351 - 354 (2007/10/02)
2,4-Disubstituted dihydropyrans, isomeric with respect to the position of the double bond, were obtained by the reaction of isobutylene and α-methylstyrene with formaldehyde and aliphatic aldehydes.
PRODUCTION OF SUBSTITUTED 5,6- AND 3,6-DIHYDRO-2H-PYRANS FROM 4,4-DIMETHYL- AND 4-METHYL-4-PHENYL-1,3-DIOXANES AND CARBONYL COMPOUNDS
Romanov, N. A.,Kantor, E. A.,Musavirov, R. S.,Karakhanov, R. A.,Rakhmankulov, D. L.
, p. 1576 - 1581 (2007/10/02)
2,4-Disubstituted and 2,2,4-trisubstituted dihydropyrans, isomeric with respect to the position of the double bond, were obtained by the reaction of 4,4-dimethyl- and 4-methyl-4-phenyl-1,3-dioxanes with aldehydes and ketones.The effects of temperature and of the amount and nature of the catalyst on the direction and selectivity of the reaction were investigated.
