Helvetica Chimica Acta p. 1429 - 1438 (1987)
Update date:2022-09-26
Topics:
Wenkert, Ernest
Guo, Ming
Pizzo, Ferdinando
Ramachandran, Kishore
Furans with side-chains at C(2) of various lengths terminating in diazomethyl keto groups are shown to undergo Rh2(OAc)4-catalyzed furan unravelling with the production of 2-cyclopentenone, 2-cyclohexenone, and 2-cycloheptenone to each of whose olefinic C(β) is attached an acrylaldehyde unit.Interposition of a cyclohexane or a methylaminomethylene moiety between the furan and diazoketo functions leads to the formation of a hydroindenone and pyrrolone, respectively.Replacement of the diazomethylketo terminus by an α-diazoethylketo system or a α-diazo-β-keto-ester function produces 2-substituted 2-cycloalkenones.A furan with a C4, diazomethylketo-terminating side-chain at C(3) is described to be transformed into a 4-formylmethylidene-2-cyclohexenone.
View MoreCangzhou Senary Chemical Science-tech Co., Ltd
Contact:+86-317-3563899, 3563699
Address:168 Jinde Road, Cangzhou, Hebei, China
Zibo Jujin Chemical Industry Co., Ltd.(Dongming Jujin Chemical Industry Co., Ltd. )
Contact:+86-533-2975022
Address:No.99 Shanquan Road, Zhangdian District
Contact:+86-22-83718541
Address:32th Floor, Rongqiao Center Intersection of Changjiang Road and Nankai Six Road Nankai District Tianjin 300102, China
Quzhou Aokai Chemical Co., Ltd.
Contact:86-570-3032832
Address:NO.16 , Laodong Road,Quzhou City, Zhejiang Province,China
Hangzhou Taiyan Trading Co., Ltd
Contact:+86-13777583958
Address:NO.63, Xingyi Street, Xihu District, Hangzhou, Zhejiang, China
Doi:10.1002/ejic.200701115
(2008)Doi:10.1246/cl.2009.122
(2009)Doi:10.3987/COM-08-S(F)101
(2009)Doi:10.1021/jo00249a026
(1988)Doi:10.1002/adsc.200800221
(2008)Doi:10.1039/jr9350000989
(1935)