The Transformation of Tetramethylglucoseen-1,2 into 5-(Methoxymethyl)-2-furaldehyde
作者:M. L. Wolfrom、E. G. Wallace、E. A. Metcalf
DOI:10.1021/ja01254a017
日期:1942.2
Intramolecular 1,5- versus 1,6-Hydrogen Abstraction Reaction Promoted by Alkoxy Radicals in Carbohydrate Models
作者:Cosme G. Francisco、Raimundo Freire、Antonio J. Herrera、Inés Peréz-Martín、Ernesto Suárez
DOI:10.1021/ol025981u
日期:2002.5.1
[GRAPHICS]The alkoxy radical generated by reaction of 3,7-anhydro-2-deoxyoctitols with (diacetoxyiodo)benzene (DIB) and iodine abstracts regioselectively either the proton at C7 or that at C4 depending on the electronegativity of the substituent at C4. The correct election of this substituent can switch the reaction to give 2,9-dioxabicyclo[3.3.1]nonane or hexahydro-2H-furo[3,2-b]pyran ring systems.