Journal of the Chemical Society. Perkin transactions I p. 1043 - 1050 (1986)
Update date:2022-07-29
Topics:
Cushman, Mark
Wong, Wai Cheong
Bacher, Adelbert
An investigation of the structures of the reaction products derived from perfluorobutane-2,3-dione (PFBD) and a variety of ortho-diamines has been undertaken with the aim of determining the extent to which trifluoromethyl groups stabilize covalently bound hydrates.The substituted quinoxalines as well as the pyrido<2,3-b>pyrazine (25) and the lumazines (27), (29), and (31) were all found to exist as completely dehydrated aromatic species.Depending on the reaction conditions, both the aromatic form (33) and the stable, neutral covalent dihydrate form (34) could be obtained from the reaction of PFBD with 4,5-diamino-6-hydroxypyrimidinium sulphate (32).The pyrido<3,4-b>pyrazine system (36) as well as the pteridine (38) were also found to exist as stable, neutral covalent dihydrates in which the pyrazine ring is selectively hydrated.
View MoreHubei Onward Bio-Development Co., Ltd.
Contact:+86-718-8417012
Address:No.517,Shizhou Avenue,Enshi City,Hubei Province,China,445002
Contact:+86-0512-69209969
Address:Room 317,Lushan Road,Suzhou New District,Jiangsu Province,China.
Contact:0086-22-2822 1962 / 2822 1963
Address:B-808, No. 1, North-South Street, Hexi District,
Ningbo Distant Chemicals Co.,Ltd
Contact:86-574-27862490,27862438
Address:5F-3,#54 DaShaNi street,Ningbo,CHINA
Chongqing maohuan Chemicals Co., Ltd
website:http://www.bschem.com
Contact:+86 13996103726
Address:Chongqing Nan'an District Tu Town
Doi:10.3390/molecules13020348
(2008)Doi:10.1021/ic800934h
(2008)Doi:10.3987/COM-08-S(N)43
(2008)Doi:10.1021/jo8017582
(2008)Doi:10.1016/j.tetlet.2018.12.033
(2019)Doi:10.1021/acs.joc.0c01377
(2020)
