Journal of the Chemical Society. Perkin transactions I p. 335 - 339 (1991)
Update date:2022-07-29
Topics:
Moody, Christopher J.
Rees, Charles W.
Young, Richard G.
The 1-(2,2-disubstituted alk-1-enyl)-5-phenyltetrazoles 2 and 4 are prepared from 1-methyl-5-phenyltetrazole and 5-phenyl-1-trimethylsilylmethyltetrazole by formation and appropriate interception of the α-lithioalkyl derivatives.Photolysis of the tetrazoles 2a and 4 gives the stable 4H-imidazoles 9 and 5, respectively.Similar photolysis of the tetrazole 2b gives the tetrazolophenanthrene 12 by an oxidative photocyclisation which is faster than nitrogen extrusion from the tetrazole ring.However, on further irradiation the tetrazolophenanthrene 12 can be transformed into the polycyclic 4H-imidazole 13.The 4H-imidazoles all undergo <1,5>alkyl or aryl shifts to carbon when heated, 5,7,9 and 13 giving 6,8,10 and 14 respectively.
View MoreHangzhou Ocean Chemical Co., Ltd.
website:http://www.hzoceanchem.com
Contact:+86-571-88025872, 28272092, 28272096
Address:Room 623 ,Building No 1 , COFCO Radius Commercial Center Xiwen Road, Xiacheng District, Hangzhou, Zhejiang Province, China
Chengdu Biopurify Phytochemicals Ltd.
website:http://www.phytopurify.com
Contact:+86-28-82633397
Address:2F,No.11 Building,No.388 Rongtaidadao CNSTP,Wenjiang Zone,Chengdu,Sichuan, China
Jinan Hongfangde Pharmatech Co.LTD
Contact:0531-88870908
Address:F Bldg,750#,Shunhua Rd,New&High-tech Zone,Jinan,Shandong,China 250101
Shijiazhuang Yunxuan Im&Export Co.,Ltd.
Contact:+86-311-83037514
Address:No.6 Hongbin Road
Hangzhou Zyter Biological & Chemical Technology Co., Ltd.
website:http://www.zyterpharm.com
Contact:+86-18858184290
Address:West Wenyi Road, Cangqian, Yuhang
Doi:10.1016/j.tetlet.2011.07.054
(2011)Doi:10.1021/acs.orglett.1c00464
(2021)Doi:10.1002/anie.201103409
(2011)Doi:10.1002/adsc.201900983
(2019)Doi:10.1016/j.bmc.2018.08.011
(2018)Doi:10.1002/ejic.201100260
(2011)
