1,8-Diazabicyclo[5.4.0]undec-7-ene: A Highly Efficient Catalyst for One-Pot Synthesis of Substituted Tetrahydro-4H-chromenes, Tetrahydro[b]pyrans, Pyrano[d]pyrimidines, and 4H-Pyrans in Aqueous Medium
2013 ◽
Vol 51
(3)
◽
pp. 618-624
◽