The reductive homo-coupling of 2-aryl-2-oxazolinium salts was achieved by reduction with Zn-CTMS, electroreduction with zinc anode, or direct electroreduction. The homo-coupled products were converted to α-diketones.
Starting from optically active 1,2-diamines the optically active C 2-chiral amidines 3a-e and 4a,b were prepared.
从具有光学活性的 1,2-二胺开始,制备出了具有光学活性的 C 2-手性脒 3a-e 和 4a,b。
A novel synthesis of functionalized aldehyde equivalents through addition of carbanions on Δ2-oxazolinium cations
作者:Kamaljit Singh、Jasbir Singh、Harjit Singh
DOI:10.1016/s0040-4020(98)00089-1
日期:1998.4
Bis- and mono carbanions add at C-2 of Δ2-oxazolinium cations to furnish novel oxazolidines existing mainly as their unprecedented enamine chain tautomers.