作者:Sandor Karady、Joseph S Amato、Robert A Reamer、Leonard M Weinstock
DOI:10.1016/0040-4039(96)01936-3
日期:1996.11
enol ether of α-diazoacetoacetate is used for the annelation of aromatic oxo compounds. The method involves condensation with the oxo compound in the presence of TiCl4 followed by rhodium octanoate-catalyzed ringclosure to afford furan derivatives by direct carbene isertion and β-naphthol esters by a Wolff rearrangement pathway.
Highly Enantioselective Catalytic Synthesis of Functionalized Chiral Diazoacetoacetates
作者:Xinfang Xu、Wen-Hao Hu、Michael P. Doyle
DOI:10.1002/anie.201102405
日期:2011.7.4
In addition: The Mukaiyama–Michael addition in the presence of a chiral copper(II) Lewis acid is a highlyenantioselective and efficient method for the construction of a broad range of chiral γ‐functionalizeddiazoacetoacetates. These products can be conveniently transformed into useful enantiomer‐enriched 1,5‐diesters (see scheme, Np=1‐naphthyl, TBS=tert‐butyldimethylsilyl).
此外:在手性路易斯酸铜 (II) 存在下进行 Mukaiyama-Michael 加成反应是一种高度对映选择性且有效的方法,可用于构建各种手性 γ-官能化重氮乙酰乙酸酯。这些产品可以方便地转化为有用的富含对映体的 1,5-二酯(参见方案,Np=1-萘基,TBS= 叔丁基二甲基甲硅烷基)。
Constructing chiral diazoacetoacetates by enantioselective catalytic Mukaiyama aldol reactions
作者:Kousik Kundu、Michael P. Doyle
DOI:10.1016/j.tetasy.2005.12.030
日期:2006.2
Asymmetric catalysis of Mukaiyamaaldol addition reactions of methyl 3-TMSO-2-diazo-3-butenoate 4 with aromatic aldehydes using AgF/(R)-BINAP at −20 °C produces chiral diazoacetoacetates in high chemical yields and with high enantiocontrol.