Desymmetrizing asymmetric ring expansion: stereoselective synthesis of 7-membered cyclic β-keto carbonyl compounds with an α-hydrogen
作者:Takuya Hashimoto、Yuki Naganawa、Keiji Maruoka
DOI:10.1039/c0cc01424a
日期:——
Ring expansion of symmetrically substituted cyclohexanones with N-α-diazoacetyl camphorsultam was devised as a stereoselective pathway to the functionalized 7-membered cyclic β-keto carbonyls having a kinetically stabilized α-hydrogen.