Unsaturated nitrogen compounds containing fluorine. Part 9 [1]. The preparation of 2,5-dichloro-l,l,l,6,6,6-hexafluoro-3,4-diazahexa-2,4-diene and its reaction with amines
作者:David Bell (in part)、Ahmed OA Eltoum (in part)、Neil J O'Reilly、Anthony E Tipping
DOI:10.1016/s0022-1139(00)80071-8
日期:1993.9
phosphoryl chloride. Nucleophilic displacement ofchlorine from azine 1 occurs readily on reaction with primary amines RNH2 (RPri, Bus,Ph, 4-FC6H4, 2,6-Cl2C5H2NCH2-4) and with secondary amines (morpholine and Et2NH);in general, mono- or di-substitution can be achieved by varying the azine/amine ratio(1:2 or 1:4). The products are the azines CF3(NRR′)NNCClCF3 (7) (RH, R′Pri;RR′Et) and CF3C(NRR′)NNC(NRR′)CF3
通过1,2的反应,以良好的收率(60%)制备了2,5-二氯-1,1,1,1,6,6,6-六氟-3,4-二氮杂己基2,4-二烯(1)。 -双(三氟乙酰基)肼与N,N-二甲基苯胺盐酸盐和磷酰氯的混合物。从吖嗪亲核置换ofchlorine 1容易地发生在反应与伯胺RNH 2(RPr我,卜小号中,Ph,4-FC 6 H ^ 4,2,6-CL 2 ç 5 ħ 2 NCH 2 -4),并用仲胺(吗啉和Et 2NH);通常,可以通过改变嗪/胺比(1:2或1:4)来实现单取代或二取代。该产品是吖嗪CF 3(NRR')NNCClCF 3(7)(RH,R'Pr我;RR'Et)和CF 3 C(NRR')NNC( NRR')CF 3(8)(RH,R'= PR我,卜小号和2,6--CL 2 pyCH 2 -4;RR':的Et;RR'CH 2 CH 2 OCH 2 CH 2)和亚氨tautomersPhNC(CF