Journal of the Chemical Society. Perkin transactions II p. 2093 - 2098 (1988)
Update date:2022-08-02
Topics:
Boyd, A. John
Boyd, Derek R.
Burnett, Michael G.
Malone, John F.
Jennings, W. Brian
The dinitrone derivatives (5a, b) of 2,2,4,4-tetramethylcyclobutane-1,3-dione were synthesised by peroxyacid oxidation of the corresponding di-imines (3a, b).X-ray crystallographic analysis of diimine (3a) and the hydroxyimino nitrone isomers (6a, b) indicate a marked buttressing effect leading to an exclusive preference for the trans geometry in di-imine (3a) and dinitrone (5a).Thermal elimination reactions of the N-But substituted nitrones (5a), (6a), and (8a) to yield oximes and 2-methylpropene have been investigated bu u.v. kinetic studies.The results areconsistent with a concerted mechanism involving a five-membered cyclic transition state.
View Morewebsite:http://www.win-winchemical.com
Contact:0086-577-64498589
Address:6F, No. 396 Xingping Road, Longwan Industrial Zone, Wenzhou City, Zhejiang, 325000 P.R.China
Contact:+86-25-52346955
Address:199,JIANYE ROAD,NANJING,CHINA
website:http://www.mingchem.com/en/index
Contact:0519-85170101-802
Address:Fifth Floor,B of Beihua Buliding,520 Road of Science and Education City,Changwu middle road NO.801,Wujin District,Changzhou,Jiangsu province
Hebei Tianxiang Biological & Pharmaceutical Co., Ltd
Contact:86-0312-6615158
Address:No 42 fazhan street qingyuan county
Penglai Qianwei Chemical Co., Ltd.
Contact:86-535-3357802
Address:Shahelu (north), Penglai, Shandong, China
Doi:10.1016/j.tetlet.2009.11.134
(2010)Doi:10.1016/j.carres.2009.11.016
(2010)Doi:10.1021/jm00128a013
(1989)Doi:10.1248/cpb.37.545
(1989)Doi:10.3987/COM-09-S(S)8
(2010)Doi:10.1021/acs.jnatprod.6b00443
(2016)
