Methods of performing cycloadditions, reaction mixtures, and methods of performing asymmetric catalytic reactions
申请人:Rawal Viresh H.
公开号:US20100184999A1
公开(公告)日:2010-07-22
Methods of performing cycloadditions are described that include (a) combining a first reactant and a second reactant in a hydrogen bonding solvent to form a reaction mixture; and (b) reacting the first reactant and the second reactant to form a cycloadduct. Methods of performing asymmetric catalytic reactions are also described that include (a) combining a first reactant, a second reactant, and a catalytic amount of a chiral hydrogen-bond donor in a solvent to form a reaction mixture; and (b) reacting the first reactant and the second reactant to form an enantiomeric excess of a reaction product. Reaction mixtures corresponding to these methods are also described.
US7230125B1
申请人:——
公开号:US7230125B1
公开(公告)日:2007-06-12
US8513442B2
申请人:——
公开号:US8513442B2
公开(公告)日:2013-08-20
Cycloaddition reactions of acyl ketenes with enol ethers: A general synthesis of 2-alkoxy-2,3-dihydro-4h-pyran-4-ones.
作者:Robert S. Coleman、Eugene B. Grant
DOI:10.1016/s0040-4039(00)97442-2
日期:——
A detailed description of the hetero Diels-Alder reactions of acyl ketenes 4-6 with electron-rich dienophiles 7-9 for the facile synthesis of 2-alkoxy-2,3-dihydro-4H-pyran-4-ones 10-12 is presented.