Journal of Organic Chemistry p. 348 - 352 (1992)
Update date:2022-08-03
Topics:
Udayakumar, B. S.
Schuster, Gary B.
The photochemistry of 2,2"-ethano-bridged m-terphenyl derivatives 4, 8, and 9 was investigated.These compounds are chiral and may be suitable photoresolvable additives to discotic liquid crystals.Unlike their unbridged analogues, 4, 8, and 9 rearrange rapidly when irradiated with UV light to the o-terphenyl compounds 10,11, and 12, respectively.This rearrangement is likely to proceed through an intermediate benzvalene valence-bond isomer.The high reactivity of the 2,2"-ethano-bridged compounds is attributed to distortion in their lowest excited singlet states and to the relief of strain when the ortho isomers are formed.
View MoreShanghai Biobond Pharmaceutical Co.,Ltd
website:http://www.sh-biobond.com/EnglishIndex.aspx
Contact:021-68719686 /18939786273/ 18917373795
Address:Shanghai Zhangjiang
Anhui Asahikasei Chemical Co., Ltd
Contact:86-551-4259770
Address:No. 88 Linquan Road Hefei Anhui China
Shandong Yuanli Science and Technology Co., Ltd.
Contact:86-0536-6777557
Address:Zhuliu Industiral Park,Changle County
Nantong Auxin Electronic Technology Co., LTD
Contact:86-513-88760026
Address:NO.5-1, Aoxin Road, Haian Hi-tech Development Zone, Jiangsu Province, China
Contact:+86-574-89075960
Address:#100 Xiang Yun Road, New High tech area, Ningbo, China
Doi:10.1021/jo4012909
(2013)Doi:10.1016/S0040-4020(01)96152-6
(1991)Doi:10.1039/d1ob00840d
(2021)Doi:10.1016/j.tetlet.2013.10.085
(2014)Doi:10.1016/S0040-4039(98)01599-8
(1998)Doi:10.1016/j.tet.2012.03.026
(2012)