The Addition of Phosgene to 2,3-Butanedione: A Facile Synthetic Entry into the 4,5-Dichloro-1,3-dioxolan-2-one Family
作者:Joseph A. King
DOI:10.1080/00397919308009845
日期:1993.3
Abstract The addition of phosgene to 1,2-Diketones at room temperature constitutes a facileentry into the 1,3-dioxolan-2-one family.
摘要 在室温下向 1,2-二酮中添加光气可以轻松进入 1,3-二氧戊环-2-one 家族。
Preparation and Utility of Cyclic Enol Carbonates
作者:Mark Lautens、Matthew L. Maddess
DOI:10.1055/s-2004-822401
日期:——
temperature readily affords cyclic enol carbonates with either five- or six-membered rings. Reaction with potassium tert-butoxide results in the in situ formation of an enolate which after transmetallation participates in aldol or Mannich reactions. Alternatively, the potassium enolates can be trapped with silylating or triflating agents. The regio- and stereoselective generation of silyl enol ethers with up