[EN] PROCESS FOR THE PREPARATION OF AMIDES FROM HINDERED ANILINES CONTAINING A PERHALOALKYL GROUP<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION D'AMIDES À PARTIR D'ANILINES ENCOMBRÉES CONTENANT UN GROUPE PERHALOALKYLE
申请人:SYNGENTA PARTICIPATIONS AG
公开号:WO2014161850A1
公开(公告)日:2014-10-09
The present invention provides a novel and improved process for the production of the production of hindered anilines containing perfluoroalky groups in good yield any by using close to stoichiometric amounts of acylating agent.
PROCESS FOR THE PREPARATION OF AMIDES FROM HINDERED ANILINES CONTAINING A PERHALOALKYL GROUP
申请人:SYNGENTA PARTICIPATIONS AG
公开号:US20160168097A1
公开(公告)日:2016-06-16
The present invention provides a novel and improved process for the production of the production of hindered anilines containing perfluoroalky groups in good yield any by using close to stoichiometric amounts of acylating agent.
The most advantageous technological parameters of tetrafluoroethene telomerization using 1-chloro-2-iodohexafluoropropane (telogen) towards the telomers n2-n4 or n1-n4 were experimentally established. The telomers n1-n4 were prepared with the yield of 48 mol% under the following conditions: temperature 170 degrees C, the molar ratio of 1-chloro-2-iodohexafluoropropane to tetrafluoroethene equal to 1.2, the autoclave filling of 1.5 kg dm(-3) The maximum yield of telomers n2-n4 amounted to 27 mol% when the molar ratio of telogen to tetrafluoroethene was decreased to 0.7 and the other parameters of synthesis remained the same. The optimum parameters for the synthesis of telogens: 1-chloro-2-iodohexafluoropropane and 2-iodoheptafluoropropane have been also determined. (c) 2006 Elsevier B.V. All rights reserved.
Addition of Iodine Halides to Fluorinated Olefins. I. The Direction of Addition of Iodine Monochloride to Perhaloölefins and Some Related Reactions
作者:Murray Hauptschein、Milton Braid、Arnold H. Fainberg