Journal of the Chemical Society. Perkin transactions II p. 875 - 886 (1988)
Update date:2022-07-29
Topics:
Gilbert, Bruce C.
Parry, David J.
The addition od ether-derived oxygen-conjugated radicals .CR1R2OCHR1R2 to alkynes R3C<*>CR4 leads to vinyl radicals, most of which undergo a rapid 1,5-shift (k>105 s-1) to give radicals .CR1R2OCR1R2CR3=CHR4.The reactions of the latter species, as revealed by e.s.r. spectroscopy, include fragmentation (to give R1R2C=O and .CR1R2CR3=CHR4), ring-opening (e.g. for radicals from tetrahydrofuran and dioxane and their derivatives), and trapping via reaction with a further molecule of alkyne.A kinetic analysis is presented and results are interpreted in terms of the electronic and steric effects of substituents in the intermediates.
View MoreContact:+86-710-3516804
Address:Number 83,Panggong road,Xiangcheng District,Xiangyang ,Hubei
Chemieliva Pharmaceutical Co., Ltd.
website:http://www.chemieliva.com
Contact:+86-23-67770219
Address:99 Longhua Road, Yubei District, 401147, Chongqing, China Email: sales@chemieliva.com Tel:0086-23-67770219 Fax: 0086-23-67770220 Attn: Andy Huang
Shanghai united Scientific Co.,Ltd.
Contact:+86-21-53535353
Address:28F No.900 huaihai Road Shanghai China
Puyang Huicheng Electronic Material Co., Ltd
website:http://huichengchem.weba.testwebsite.cn/index_en.html
Contact:+86-393-8910800
Address:West Section Shengli Road, Puyang457000, China
website:http://www.sagechem.com
Contact:+86-571-86818502
Address:Room C1301, New Youth Plaza, 8 Jia Shan Road, Hangzhou, China
Doi:10.1007/BF00487127
()Doi:10.1248/cpb.42.2276
(1994)Doi:10.1021/jo951419o
(1996)Doi:10.1080/00397911.2011.642924
(2013)Doi:10.1002/jhet.5570320412
(1995)Doi:10.1016/j.tetlet.2008.02.151
(2008)
