Journal of the Chemical Society. Perkin transactions II p. 1473 - 1482 (1980)
Update date:2022-08-05
Topics:
Beckwith, Athelstan L. J.
Moad, Graeme
Mono- and bi-cyclic radicals containing the cyclopropylmethyl system are readily generated by interaction of the appropriate halides with triphenyl- or tributyl-stannane.Each radical studied underwent ring-opening by fission of the more substituted βγ-bond.In the case of the secondary radical (12b) the new double bond was formed preferentially in the trans-configuration.Rate constants, which cannot be determined with high accuracy by this method, lie in the range 1E7-3E8 s-1 at 25 deg C.When generated by the flow method in the e.s.r. cavity α-hydroxycyclopropylmethyl radicals undergo β-fission followed by 1,5-hydrogen atom t ransfer to afford enoxyl radicals.The latter reaction occurs more slowly in water than in non-polar solvents.The rigid hydroxynortricyclyl (43) undergoes preferential fission of the less substituted βγ-bond, possibly because of the dipolar nature of the transition state.
View MoreSHAANXI TOP PHARM CHEMICAL CO.LTD
Contact:+86-029-85733403
Address:No.108 ,west sector,south er huan,xi'an,china
Arshine Pharmaceutical Co., Limited
website:http://www.cnarshine.com
Contact:0731-88503671
Address:Room 1109.Block C3, Lugu Enterprise Plaza,No.27 Wenxuan Road,Changsha National Hi-Tech Industrial Development Zone,Hunan ,P.R.China
website:http://www.arromax.com
Contact:+86-0512-62959601 skype:aimmezhang
Address:Suite 401, Bldg A3, 218 Xinghu St.Suzhou Industrial Park 215123, P.R. China
WENZHOU M&C FOREIGN TRADE CO.,LTD.
Contact:+86-577-88862917
Address:No.8 Liming West Road,Wenzhou,zhejiang,China
Lanling Hongchuang Flame Retardant Co., Ltd.
Contact:+86-531-68858132
Address:East Huafeichang Road, Cangshan County, Linyi, Shandong, China (Mainland)
Doi:10.1246/bcsj.53.2570
(1980)Doi:10.1016/j.tet.2011.06.066
(2011)Doi:10.1248/cpb.c14-00333
(2014)Doi:10.1021/ja00391a021
(1981)Doi:10.1002/hlca.19830660133
(1983)Doi:10.3987/COM-97-8087
(1998)
