Oxadiazinderivate, Verfahren zu ihrer Herstellung und ihre Verwendung als Schädlingsbekämpfungsmittel
申请人:BAYER AG
公开号:EP0014881B1
公开(公告)日:1982-02-17
US4140787A
申请人:——
公开号:US4140787A
公开(公告)日:1979-02-20
US4348394A
申请人:——
公开号:US4348394A
公开(公告)日:1982-09-07
US4465682A
申请人:——
公开号:US4465682A
公开(公告)日:1984-08-14
Method for using a carbamoyl fluoride as fluorinating agent
申请人:——
公开号:US20040049069A1
公开(公告)日:2004-03-11
The invention concerns a method for using a carbamoyl fluoride as fluorinating agent. Said method consists in treating a derivative bearing a halogen-containing carbon, with a carbamoyl fluoride at a temperature not less than
70
° C. and in maintaining the ratio between the sum of hydrofluoric acid (HF) and carbamoyl fluoride as well as between the sum of exchangeable halogen atoms, isocyanate functions and carbamoyl fluoride [(HF+carbamoyl fluoride)/(exchangeable halogen+isocyanate+carbamoyl fluoride)] at a value not more than 1.2; then in carrying out a catalysis process with tin, antimony and/or titanium salt. The invention is applicable to synthesis of fluorinated derivatives.