Tetrahedron Letters p. 5501 - 5504 (1988)
Update date:2022-09-26
Topics:
Wilcox, C.F.
Hellwinkel, D.
Stahl, H.
Gaa, H.G.
Doerner, M.
Relative to their neutral precursors, highly charged multi-tritylium ions show typical downfield 1H-NMR shifts, whereas the corresponding phenylfluorenylium ions show upfield shifts.A Hueckel based model is presented that accounts for this contrasting behavior in terms of antiaromatic ring current in the five-membered ring of the fluorenyl system with essentially null ring currents in the two six-membered rings.
View Moretaizhou creating bio-pharm co.,ltd.
Contact:+86- 576- 88827176
Address:715 room ,unit A.junyue Building,Jiaojiang,Taizhou,Zhejiang,China
ZHIJIANG ZENVA SINO COMMERCE AND TRADE CO., LTD.
website:http://www.zenvasino.com
Contact:+86-138-72658998
Address:Shibeishan Road,Zhijiang, Hubei, China
Changsha Yonta Industry Co., Ltd.
Contact:+ 86-731-8535 2228
Address:Rm.1717, North Bldg., No.368, East 2nd Ring Road(2nd Section)
Contact:+86 21 5017 5386
Address:No 999,Jiangyue Rd, Minhang Dist ,201114,Shanghai ,China
Shanghai Rainbow Chemistry Co., Ltd.
Contact:+86-21-64968086-5815/5812
Address:3rd floor, Building 7, 251 Faladi Road, Zhangjiang Hi-Tech Park, Pudong District, Shanghai, P.R. China
Doi:10.1016/j.bmcl.2008.07.038
(2008)Doi:10.1021/ja9730223
(1998)Doi:10.1021/ja00253a064
(1987)Doi:10.1021/ja01559a039
(1957)Doi:10.1021/om00153a036
(1987)Doi:10.1021/jo00231a034
(1987)
