phenacylide [ → py+C̄(COPh)C5F4N-4] and a range of pyridinium alkoxycarbonylmethylides [ → py+C̄(CO2R)C5F4N-4, R = Me, Et, Prn, Pri, CH2CCl3, CH2CF3, CH2Ph, CH2CH2Ph]. A detailed analysis of the mass spectrometric fragmentation patterns for the alkoxycarbonyl compounds has been carried out. Spectroscopic data has also been obtained for pyridinium methylides synthesised from pyridinium ethoxycarbonylmethylide
九个新的
吡啶鎓methylides已经通过S合成Ñ从五
氟4-
氟吡啶鎓phenacylide的
氩位移[→PY + C̄(
COPH)C 5 ˚F 4 N-4]和一系列
吡啶鎓alkoxycarbonylmethylides的[→PY + C̄(CO 2 R)C 5 F 4 N-4,R = Me,Et,Pr n,Pr i,CH 2 CCl 3,CH 2 CF 3,CH 2 Ph,CH 2 CH 2Ph]。已经对烷氧基羰基化合物的质谱碎裂模式进行了详细分析。还获得了由
吡啶鎓乙氧基羰基甲基化物和3-
氯四
氟吡啶或
八氟甲苯合成的
吡啶鎓甲基化物的光谱数据。