New Vilsmeier reaction for facile synthesis of 4-phenyl-2,4-dihydrochromeno[4,3-c]pyrazoles with bis(trichloromethyl) carbonate/DMF

作者：Chen, Zhiwei; Yang, Yanyan; Su, Weike^*

来源：Journal of Chemical Research, 2010, (11): 661-664.

DOI：10.3184/030823410X12888867039388

• Vilsmeier reagent
• pyrazoles
• flavanone
• cyclisation

An efficient method for the synthesis of 4-phenyl-2,4-dihydrochromeno[4,3-c]pyrazoles via the cyclisation reaction of the easily available flavanone-4-arylhydrazones with Vilsmeier reagent (Bis(trichloromethyl) carbonate/DMF) has been developed.

• 出版日期2010-11
• 单位浙江工业大学