Chemistry of Heterocyclic Compounds p. 311 - 316 (1989)
Update date:2022-07-30
Topics:
Doronina, S. O.
Gall', A. A.
Shishkin, G. V.
1-Methyl-1-(β-haloethyl)-1,2,3,4-tetrahydroquinoxalinium salts were synthesized and the dependence of the hydrolysis and cyclization rate constants on the acidity of the medium and presence of halide was found.It was determined that the monocations of tetrahydroquinoxalines participate in the formation of the benzo-1,4-diazabicyclo<2.2.2>octene system, since blocking the free electron pair of the tertiary nitrogen atom with a methyl substituent significantly accelerates the cyclization and suppresses the hydrolytic side reaction.
View MoreTIANJIN GST CHEMICAL TECHNOLOGY CO., LTD
Contact:+86-22-25210964
Address:Room. 208, No. -12-C, No. 13, Xinbei Road, Tanggu District, New Haixin Area, Tianjin City, China
Hefei Highzone Fine Chemical S&T CO.,LTD
Contact:86-0551-63663560
Address:room 1801 NO. 24 Shuguang RD.
Weifang Dongxing Chitosan Factory
website:http://dxchitosan.lookchem.com/
Contact:13475651157
Address:Weifang city ,shandong province
Cerametek Materials（ShenZhen）Co., Ltd.
Contact:+86-755-2324.2554
Address:A3-#9, YongChuan Street, Suite 501
Nanjing Chemzam Pharmtech Co., Ltd.
Contact:+86-25-86462165,+86-13915979898
Address:C5-1，6 Maiyue Road，Maigaoqiao，Nanjing，Jiangsu，China
Doi:10.1055/s-2002-34369
(2002)Doi:10.1016/0040-4039(88)80007-8
(1988)Doi:10.1021/ic802359z
(2009)Doi:10.1016/j.tetlet.2009.02.056
(2009)Doi:10.1007/BF02311327
(1998)Doi:10.1016/j.bmcl.2009.07.096
(2009)
