AUGUST R.; DAVIS C.; TAYLOR R., J. CHEM. SOC. PERKIN TRANS.,(1986) N 8, 1265-1268
作者:AUGUST R.、 DAVIS C.、 TAYLOR R.
DOI:——
日期:——
Electrophilic aromatic reactivities via pyrolysis of esters. Part 21. σ<sup>+</sup>Values for thiazole: the high polarisability of thiazole, and the effect of hydrogen bonding on the reactivity of N-containing heterocycles
作者:Ryan August、Carole Davis、Roger Taylor
DOI:10.1039/p29860001265
日期:——
values 0.93, 0.505, and –0.07. The positional reactivity order, and the reactivity relative to benzene, are correctly predicted by π-electron density calcuations. The reactivity of each position is substantially less than in solvolysis of the corresponding 1-aryl-1-chloroethanes, in contrast to the reactivity of thiophene which is closely similar in both pyrolysis and solvolysis reactions. Thiazole is thus