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ChemInform Abstract: Pyridine-Facilitated Phenylselenoetherification of Some Tertiary Alkenols.

โœ Scribed by Biljana M. Mojsilovic; Zorica M. Bugarcic


Publisher
John Wiley and Sons
Year
2010
Weight
30 KB
Volume
33
Category
Article
ISSN
0931-7597

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โœฆ Synopsis


Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a โ€œFull Textโ€ option. The original article is trackable via the โ€œReferencesโ€ option.


๐Ÿ“œ SIMILAR VOLUMES


Pyridine-facilitated phenylselenoetherif
โœ Biljana M. Mojsilovic; Zorica M. Bugaric ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 126 KB

## Abstract An improved procedure for intramolecular cyclization of tertiary alkenols using benzeneselenyl halides has been developed. We found that cyclization can be facilitated by pyridine. Thus, in the presence of an equimolar amount of pyridine, a chemospecific reaction could be observed that

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## Abstract magnified image Studies on the phenylselenoetherification of some ฮ”^4^โ€alkenols in the presence of pyridine and some Lewis acids are described. All alkenols underwent intramolecular cyclization yielding corresponding tetrahydrofuran or tetrahydropyran derivatives. Yield and diastereomer

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## Abstract An improved procedure for intramolecular cyclization of some ฮ”^5^โ€alkenols, using PhSeX (X = Cl, Br) has been developed. We found that cyclization can be facilitated in the presence of pyridine, Ag~2~O, and some Lewis acids as catalysts. Thus catalytic amount of additives (pyridine and