作者:René Beugelmans、Michèle Bois-Choussy、Bernard Boudet
DOI:10.1016/s0040-4020(01)88635-x
日期:1983.1
Functionalized aromatic halides Ar1XY (Ar1 = C6H4, Y = OCH3, CONH2, CN, COCH3, CHO, COC6H5) undergo SRN1 reactions with sulphur anions -SR, either simple (R=C2H5, CH2C6H5) or functionalized (R = (CH2)2OH, (CH2)2CO2Et, CH2CO2Et). Products Ar1YS- formed from the fragmentation of the radical anion Ar1YSR- are related to the redox potential of the aryl moiety Ar1Y and with the energy of the bond S-R. In
官能化的芳族卤化物的Ar 1 XY(AR 1 = C 6 H ^ 4,Y = OCH 3,CONH 2,CN,COCH 3,CHO,COC 6 H ^ 5)经历小号RN 1个反应用硫阴离子- SR,无论是简单的(R = C 2 H 5,CH 2 C 6 H 5)或官能化的(R =(CH 2)2 OH,(CH 2)2 CO 2 Et,CH 2 CO 2 Et)。产品Ar1个YS -从阴离子自由基的Ar的碎片形成1 YSR -都与芳基部分Ar的氧化还原电位1 Y和与接合SR的能量。在杂环系列(Ar 2 =吡啶,Ar 3 =喹啉)中,出现了相似的关系,但带有吸电子基团的吡啶底物发生竞争性S N(Ar)反应。据报道,通过S RN 1反应可直接合成苯并噻吩,并基于S N(Ar)反应可改进噻吩并吡啶的合成。