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New functionalizations of oxanorbornenic systems via 1,3-dipolar : cycloadditions with c,n-diphenylnitrone

โœ Scribed by Odon Arjona; Roberto Fernandez De La Pkadilla; Rosa A. Perez; Joaquin Plumet


Book ID
104203701
Publisher
Elsevier Science
Year
1988
Tongue
French
Weight
416 KB
Volume
44
Category
Article
ISSN
0040-4020

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โœฆ Synopsis


The regio-and stereoselectivity of the c cloadditioa between C.N-diphenylnitrone and 2-endo-acetoxy-7-oxabicyclo 2.2.l]hept-S-enee 2-exo-carbonitrile has been studied. Subsequent fragmentation of the isoxazolidine ring with mCPBA followed by acidic hydrolysis yields highly functionalized oxanorbornenic hydroxyketones.


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Kinetics of 1,3-dipolar cycloaddition re
โœ M. R. Gholami; A. Habibi Yangjeh ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 48 KB ๐Ÿ‘ 2 views

Second-order rate constants and activation parameters of 1,3-dipolar cycloaddition reaction between C,N-diphenylnitrone and dimethyl fumarate were obtained in various solvents and aqueous solutions at 65ะŠC. Second-order rate constants of the reaction in water and ethylene glycol are approximately 33