Bulletin of the Chemical Society of Japan p. 3469 - 3482 (1995)
Update date:2022-08-02
Topics:
Fukushima, Kazuaki
Ibata, Toshikazu
The Rh2(OAc)4-catalyzed reactions of α-diazocarbonyl compounds in nitrile in the presence of dimethyl acetylenedicarboxylate (DMAD) gave oxazole and pyrrole derivatives.The formation of the oxazole derivatives is explained in terms of the 1,5-cyclization of an acyl-substituted nitrile ylide intermediate, and the formation of the pyrrole derivatives is explained by the 1,3-dipolar cycloaddition of the same intermediate with DMAD.The regiochemistry of the cycloaddition of the acyl-substituted nitrile ylide with methyl propiolate showed that the contribution of an allenyl-type resonance structure plays an important role in the acyl-substituted nitrile ylide reaction.
View MoreHefei Lifeon Pharmaceutical Co., Ltd.
Contact:+86-551-65328450
Address:No522 Wangjiang West Road
Weifang Dongxing Chitosan Factory
website:http://dxchitosan.lookchem.com/
Contact:13475651157
Address:Weifang city ,shandong province
Zouping Fuhai Technology Development Co., Ltd.
Contact:+0532-86934525 18660293207
Address:jiuhu town industrial park Zouping County,bingzhou Provincejiuhu town industrial park
website:http://www.easchem.com
Contact:+86-731-89722861 89722891
Address:2/F-4/Bld Colorful Palace, No.605 Changsha Ave, Yuhua Area Changsha Hunan China.
Jiangxi Huashi Pharmaceutical Co., Ltd
Contact:+86-795-4509628
Address:No.199, Ningbo Avenue, Fengxin industrial park, Fengxin county, Yichun city, Jiangxi
Doi:10.1021/jo01298a034
(1980)Doi:10.1021/ja9539148
(1996)Doi:10.1016/S0009-2614(99)01309-3
(2000)Doi:10.1016/0040-4020(96)00084-1
(1996)Doi:10.1016/S0014-827X(99)00027-0
(1999)Doi:10.1007/s11172-016-1509-6
(2016)
