Mechanisms for reactions of halogenated compounds. Part 4.[1] activating influences of ring-nitrogen and trifluoromethyl in nucleophilic aromatic substitution
作者:R.D. Chambers、P.A. Martin、J.S. Waterhouse、D.L.H. Williams、B. Anderson
DOI:10.1016/s0022-1139(00)82276-9
日期:1982.6
determined. Ring-nitrogen activates the system at points ortho-, meta- and para- to the point of substitution, in the ratios ortho- 6.2 × 104, meta- 8.5 × 102, and para- 2.3 × 105. Similarly a trifluoromethyl substituent is activating by a factor of 2.4 × 103 ortho- and 4.5 × 103 para- to the point of substitution.