Tetrahedron p. 763 - 774 (1986)
Update date:2022-07-30
Topics:
Bergman, Jan
Egestad, Boerje
The cyclocondensation of 3(2H)-benzothiophenone under acidic conditions has been studied.The symmetrical cyclotrimer tris(benzothieno)<2,3:2',3':2'',3''>benzene was formed and under certain conditions also a rearranged cyclotrimer, tris(benzothieno)<2,3:2',3':3'',2''>benzene.The formation of cyclotrimers was accompanied by oxidative coupling products involving the initially formed dimeric compound, 3-hydroxy-2,3-bibenzothienyl.During several of these reactions, a novel heterocycle, tris(benzothieno)<3,2-b:2',3'-d:2'',3''-f>oxepin, was formed.The products were studied by mass spectrometry and fragmentation pathways were determined by a linked scanning technique.
View MoreTianjin Boron PharmaTech Co.,Ltd.(expird)
Contact:86-022-59845187
Address:B9-401, Tianda Science Park,No.80,4th Avenue,TEDA,Tianjin, China
Shandong Yuanli Science and Technology Co., Ltd.
Contact:86-0536-6777557
Address:Zhuliu Industiral Park,Changle County
Contact:+91 9963263336
Address:Plot#146A, IDA Mallapur, Hyderabad - 500072
Shanghai Harvest Chemical Ind. Co., Ltd.
Contact:021-51385350
Address:ROOM 806-807, AI LI CHEN BUILDING, No.333 JINGXIANG ROAD, PUDONG DISTRICT, 201206, SHANGHAI
Contact:+86-10-83993285
Address:Rm.1708, Haobai Tower, Building 6, No.50, North Road, West Third Ring, Haidian District, Beijing, China
Doi:10.1002/anie.200800845
(2008)Doi:10.1021/jo00379a034
(1987)Doi:10.1021/ja00523a043
(1980)Doi:10.1021/ja00244a016
(1987)Doi:10.1007/BF00763778
(1986)Doi:10.1016/j.tet.2016.11.050
(2017)
