A metathetical cycloaddition–cycloreversion approach to the formation of furan scaffold libraries
作者:Darren L. Whitehouse、Kingsley H. Nelson、Jr., Sergey N. Savinov、Ralf S. Löwe、David J. Austin
DOI:10.1016/s0968-0896(98)00115-1
日期:1998.8
described. In addition, features relative to libraryconstruction, such as the chemoselective nature of dipole formation, are discussed. Through the investigation of the temperature sensitive cleavage step, the furan synthesis was found to be accelerated by aqueous medium at physiological temperature leading to pure product from the solid-phase under biologically relevant conditions. The chemoselective
Regiospecific synthesis of polysubstituted furans with mono- to tricarboxylates from various sulfonium acylmethylides and acetylenic esters
作者:Jun Dong、Hongguang Du、Jiaxi Xu
DOI:10.1039/c9ra03563j
日期:——
Polysubstituted furans were prepared in moderate to good yields from various sulfur ylides and alkyl acetylenic carboxylates. The direct reactions of dimethylsulfonium acylmethylides with dialkyl acetylenedicarboxylates afforded dialkyl furan-3,4-dicarboxylates through a tandem sequence of Michael addition, intramolecular nucleophilic addition, 4π ring opening, intramolecular Michael addition, and
A chemoselective rhodium(II) mediated solid phase 1,3-dipolar cycloaddition and its application to a thermally self-cleaving furan scaffold
作者:Darren L. Whitehouse、Kingsley H. Nelson、Sergey N. Savinov、David J. Austin
DOI:10.1016/s0040-4039(97)01768-1
日期:1997.10
acetylenes with isomünchnones is presented as a general methodology for the combinatorial formation of a furan based library. Additionally, through the development of a novelthermolytic cleavage step, this furan synthesis yields pure product from the solid-phase in a temperature dependent manner.