[4+2] Cycloaddition Reaction of 3-Hydrazono-1,1,1-trifluoro-2-alkanones to 4,5-Bis(trifluoromethyl)pyridazines
作者:Yasuhiro Kamitori
DOI:10.3987/com-00-8858
日期:——
Mechanisms for the reaction of 3-hydrazono-1,1,1-trifluoro-2-alkanons (1) to 4,5-bis(trifluoromethyl)pyridazines (2) in the presence of TFA are discussed on the basis of the 6-316* level ab initio calculations. The results indicate a concerted [4+2] cycloaddition reaction of protonated 1 to be a key step for this reaction.