79373-25-4Relevant academic research and scientific papers
Tetrahydropyranylation of alcohols and phenols catalyzed by a new polystyrene-bound tin(IV) porphyrin
Moghadam, Majid,Tangestaninejad, Shahram,Mirkhani, Valiollah,Mohammadpoor-Baltork, Iraj,Gharaati, Shadab
experimental part, p. 95 - 101 (2011/04/22)
In the present work, tetrahydropyranylation of alcohols and phenols with 3,4-dihydro-2H-pyran (DHP) catalyzed by tetrakis(p-aminophenyl) porphyrinatotin(IV) trifluoromethanesulfonate, [SnIV(TNH 2PP)(OTf)2], supported on chloromethylated polystyrene is reported. The prepared catalyst was characterized by elemental analysis, FT-IR and diffuses reflectance UV-Vis spectroscopic methods. This new heterogenized catalyst was found as efficient and reusable catalyst for tetrahydropyranylation of primary, secondary and tertiary alcohols as well as phenols at room temperature.
Dowex 50WX4-100: An efficient catalyst for the tetrahydropyranylation of alcohols
Poon,Banerjee, Ajoy K.,Bedoya, Liadis,Laya, Manuel S.,Cabrera, Elvia V.,Albornoz, Karla M.
, p. 3369 - 3377 (2011/03/19)
The ion-exchange resin Dowex 50WX4-100 has been found to catalyze efficiently the protection reaction of a variety of alcohols with 2,3-dihydro-4H pyran (DHP) and dichloromethane at ambient conditions. Copyright Taylor & Francis Group, LLC.
Use of 2-phenylsulphonyl cyclic ethers in the preparation of tetrahydropyran and tetrahydrofuran acetals and in some glycosidation reactions
Brown, Dearg S.,Ley, Steven V.,Vile, Sadie,Thompson, Mervyn
, p. 1329 - 1342 (2007/10/02)
2-Phenylsulphonyl cyclic ethers undergo facile displacement of the sulphonyl group by alcohols, in the presence of magnesium bromide etherate and sodium bicarbonate in tetrahydrofuran, to give goodyields of the corresponding acetals.
PREPARATION OF CYCLIC ETHER ACETALS FROM 2-BENZENESULPHONYL DERIVATIVES: A NEW MILD GLYCOSIDATION PROCEDURE
Brown, Dearg S.,Ley, Steven V.,Vile, Sadie
, p. 4873 - 4876 (2007/10/02)
Several alcohols ranging from hindered to those containing chemically sensitive groups react with 2-benzenesulphonyl cyclic ethers in the presence of magnesium bromide etherate and sodium bicarbonate to give good yields of the corresponding acetals.
1-Oxacephems
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, (2008/06/13)
The present invention relates to novel 1-oxacephems of the formula STR1 wherein R9 is hydrogen and R8 is hydrogen or wherein R is selected from the group consisting of lower alkyl STR2 wherein Ar is a monovalent radical selected from
