Dichloroarbene with 1-substituted 4,4,6 trimethyl- 1,4 dihydropyrimidine 2(3H) thione derivatives (2) formed 7,7-dichloro 3 [(dichloromethyl)thio]-2-substituted-1,5,5-trimethyl-2,4-diazabicyclo[4,1.0] hept-3-ene (3) and 7,7-dichloro-2-substituted-1,5,5-trimethyl-2,4-diazabicyclo [4.1.0] heptane-3 thione (4). On heating as such or under acidic or basic conditions, 3 changed to the corresponding 4 quantitatively
                                    与1-取代的4,4,6三甲基-1,4-二氢
嘧啶2(3H)
硫酮衍
生物(2)形成的二
氯芳烃形成7,7-二
氯3 [((二
氯甲基)
硫代] -2-取代的1,5,5-三甲基)7,7-二
氯-2,4-二
氮杂双环[4,1.0]庚-3-烯(3)和7,7-二
氯-2-取代的1,5,5-三甲基-2,4-二氮杂
双环[4.1.0]庚烷- 3
硫酮(4)。就这样加热或在酸性或碱性条件下加热时,3定量地变为相应的4。二
碘卡宾与2(R = CH 3,Ph)主要形成相应的1-取代的4,4,6-三甲基-1,4-二氢
嘧啶-2 1 7(R = CH 3 Ph)7(R = CH 3)。