Tetrahedron Letters p. 3835 - 3838 (1999)
Update date:2022-08-16
Topics:
Kim, Chang-Sik
Russell, K. C.
Kinetics of thermocyclization of 2,3-diethynylquinoxaline have been studied in various solvents. The cyclization rates observed were surprisingly solvent dependent. The half-lives varied from 361 in CH3CN to 16 min in THF. The half-life data show a good correlation with the solvents' spectroscopic ET(30) values and dielectric constants.
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