Chemistry of Heterocyclic Compounds p. 607 - 611 (1988)
Update date:2022-08-16
Topics:
Kalandarishvili, A.G.
Terent'ev, P.B.
Kulikov, N.S.
Orlov, V.M.
Medyantseva, E.A.
et al.
It was established that mass spectrometry makes it possible to identify in the gas phase molecular ions with both the 2H-chromene structure and their acyclic tautomers from the characteristic (M-OH)+ and (M-ArNH)+ fragment ions, respectively.The fragmentation scheme was confirmed by methods involving dissociation of ions activated by collision and deuterium labeling.Measurement of the ionization energies of the investigated compounds makes it possible to exclude the possibility of the existence in the gas phase of a tautomeric form with an o-quinoid structure.
View MoreHunan Zhongqi Pharmaceutical Co., Ltd
website:http://www.hnzqzy.com
Contact:0730-8722288 13807308622
Address:Wanjiafan Road ,Yueyang Economic And Technological Development Zone ,Hunan,PRC
Changzhou Sunsanta Chemical Co.,Ltd
website:http://www.sunsanta.com
Contact:86-519-83980506
Address:RM 601,BUILDING 38,NO.98 HONGBEI ROAD,WUJIN,CHANGZHOU,JIANGSU,CHINA
Xiamen XM-Innovation Chemical Co., Ltd
Contact:+86-592-3216205
Address:Unit Q, 11/F, No.1 Office Building, Wuyuan Bay Business Center, Huli District, Xiamen City, Fujian Province, P.R.C
JIANGXI ZHANGFENG CHEMICAL CO., LTD.
Contact:+86-0799-3413066
Address:Xiyuan village, Xiabu Town, Xiangdong District
website:http://www.p-oled.cn/
Contact:+86-29-81101199
Address:No. 1199, Dingkunchi 3rd Road, High Tech Zone, Xi'an, Shaanxi, China,710119
Doi:10.1016/j.tet.2009.10.023
(2009)Doi:10.1002/chem.200901433
(2009)Doi:10.3184/030823409X12511057064685
(2009)Doi:10.1080/00397910902906586
(2009)Doi:10.1021/jo9022183
(2010)Doi:10.1021/ja908883n
(2010)