Silica-supported synthesis of some 1,3,5-trisubstituted 2-pyrazolines under solvent-free and microwave irradiation conditions
作者:Davood Azarifar、Behrooz Maleki
DOI:10.1002/jhet.5570420125
日期:2005.1
A simple method for the synthesis of 2-pyrazolines is described which occurs on silica surface undersolvent-freeconditions within 110-180 sec using microwaveirradiation. The results obtained indicate that the use of silica gel as a support in pyrazoline formation reactions can have a profound effect on reaction rates and yields and cause cleaner reaction conditions.
Al-Arab Mohammad M., Ghanem Bader S., Olmstead Marilyn M., Synthesis (BRD)., (1992) N 10, S 1003-1006
作者:Al-Arab Mohammad M., Ghanem Bader S., Olmstead Marilyn M.
DOI:——
日期:——
TEWARI R. S.; NAGPAL D. K.; CHATURVEDI S. C., INDIAN J. CHEM., 1980 B17, NO 6, 569-571
作者:TEWARI R. S.、 NAGPAL D. K.、 CHATURVEDI S. C.
DOI:——
日期:——
GUPTA, K. C.;SAXENA, B. K.;PATHAK, P. K.;SRIVASTAVA, NIRUPMA, CURR. SCI., INDIA, 1985, 54, N 12, 571-574
作者:GUPTA, K. C.、SAXENA, B. K.、PATHAK, P. K.、SRIVASTAVA, NIRUPMA
DOI:——
日期:——
Michael-Michael Ring Closure Reaction of Benzyl Cyanides and Chalcones
作者:Mohammad M. Al-Arab、Bader S. Ghanem、Marilyn M. Olmstead
DOI:10.1055/s-1992-26289
日期:——
The synthesis of a number of highly substituted cyclohexane derivatives has been accomplished in a single step reaction of benzyl cyanides and chalcones (1:2) using sodium ethoxide in anhydrous diethyl ether at room temperature to give 3-aroyl-1,2,4, 6-tetraaryl-4-hydroxycyclohexanecarbonitriles. An unambiguous structural assignment was achieved from the analytical and infrared, 1H NMR and 13C NMR spectroscopic data as well as X-ray crystallography.