Journal of the American Chemical Society p. 3608 - 3613 (1986)
Update date:2022-08-04
Topics:
Crossley, Maxwell J.
Harding, Margaret M.
Sternhell, Sever
β-Substitution of 5,10,15,20-tetraphenylporphyrin alters the position of the tautomeric equilibrium 2a <*> 2b, which can be observed by high-field variable-temperature NMR spectroscopy.When R= NO2, CHO, Cl, Br, OMe, CN, NHCOMe,SPh, OCOPh, or OH the dominant tautomer is 2a, where R lies on the isolated double bond, while when R= CH=CH2, CH2OH, NH2, Me, CH(Me)2, or (CH2)3Me the major tautomer is 2b, where R lies on the aromatic delocalization pathway.These substituent effects do not follow a know scale.
View MoreShandong Jincheng Zhonghua Bio-pharmaceutical Co.,Ltd
Contact:+86-533-5415882
Address:Zichuan Economic Development Zone,Zibo City,Shandong Province,China
RongCheng K&S Chemical Co.,Ltd
Contact:0631-7336369
Address:rongcheng ,shandong province china
Twin International Co., Limited
Contact:+86-21-80309280
Address:No.345 Jinxiang Road, Jinqiao Export Processing Zone
HANGZHOU FOREWIN PHARMA CO., LTD
Contact:+86-571-89053961
Address:hangzhou
Hangzhou Bayee Chemical Co.,Ltd.
Contact:+86-571-86990109
Address:No.380, Jiangnan Auenue, Binjiang District, Hangzhou, China
Doi:10.1039/jr9540002481
(1954)Doi:10.1016/S0040-4039(00)61799-9
(1992)Doi:10.1016/S0957-4166(00)80044-0
(1991)Doi:10.1021/ja01649a002
(1954)Doi:10.1016/S0040-4039(00)95221-3
(1989)Doi:10.1021/ol0067538
(2000)
