Catalysis Letters, Vol.141, No.1, 183-190, 2011
1, 4-Addition of Terminal Alkynes to Conjugated Enones in Water Using Green Catalyst Bis[(L)prolinato-N,O]Zn-An Environmentally Benign Protocol
An easy, low cost, and green procedure is proposed for the 1, 4-addition of terminal alkynes to conjugated enones in water as a sole medium using easily accessible Zn[(L)Proline](2). This protocol has advantages of high yield, mild reaction conditions, no environmental pollution and simple work up procedure.
Keywords:Bis[(L)prolinato-N,O]Zn;gamma;delta-Acetylenic ketones;1,4-Addition;Water as a solvent;Recyclability;TEM;Powder XRD