Synthesis of 5-deoxy-D,L-,ribo-hexofuranuronate derivatives via 7-oxanorbornanones
作者:Richard R. Schmidt、Christiane Beitzke、Andrew K. Forrest
DOI:10.1039/c39820000909
日期:——
Cycloaddition of α-acetoxyacrylonitrile with furan in a sealed tube yields a 7-oxanorborneen derivative which is easily transformed into two 2,3-O-isopropylidene-5-deoxy-D,L-ribo-hexofuranuronate derivatives.
On the lewis acid catalyzed diels-alder reaction of furan. regio- and stereospecific synthesis of substituted cyclohexenols and cyclohexadienols.
作者:Francis Brion
DOI:10.1016/s0040-4039(00)85823-2
日期:1982.1
The [4+2] cycloaddition between furan and some dienophiles can be greatly accelerated in the presence of a Lewis-Acid (i.e. ZnI2. The 7-oxabicyclo [2.2.1] heptyl system readily undergoes a base promoted β-elimination of the heteroatom bridge leading to substituted cyclohexenols and cyclohexadienols.
The diels-alder reactions of furans 1: the reactions of furans with α-chloroacryonitrile
作者:Paul Francis Schuda、Jean M. Bennett
DOI:10.1016/s0040-4039(00)85884-0
日期:1982.1
The intermolecular Diels-Alder reactions of several furans with α-chloroacrylonitrile occurs at atmospheric pressure. The role of temperature in affecting starting material: product ratio is examined from a preparative viewpoint.