Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy p. 1105 - 1108 (1988)
Update date:2022-08-17
Topics:
Ruostesuo, P.
Haekkinen, A.-M
Liias-Lepistoee, R.
Salminen, U.
The 77Se, 15N, 13C, and 1H NMR parameters have been determined for N,N-diethylbenzenesulfen- and N,N-diethylbenzeneseleneamide and 1H-13C coupling constants additionally for N,N-dimethylmethanesulfinamide, N,N-dimethylbenzenesulfinamide, N,N-dimethylmethanesulfonamide, N,N-dimethylbenzenesulfonamide and diphenylsulfone.The nitrogen-15 nucleus is slightly more shielded in the sulfenamide than in the seleneamide.Compared to sulfin- and sulfonamides the nitrogen nuclei of these amides are more shielded.The solvent effects on the chemical shift of both selenium-77 and nitrogen-15 nuclei are observable.The nitrogen-15 chemical shifts of sulfur and seleneamides are less sensitive to the solvents than those of carboxamides.This change in the nitrogen-15 chemical shift in sulfen- and selenamide is the same order of magnitude, but opposite in direction compared with that in sulfon- and sulfinamides.The 1H-13C direct aromatic coupling constants increase along with the increasing oxidation state of sulfur in sulfur amides, being greatest in sulfonamides.
View MoreJiangXi Keyuan Biopharma Co., LTD.
Contact:+86-563-6833666
Address:Guangde Fine Chemical Zone, Anhui Province, China
Tangshan Moneide Trading Co., Ltd.
Contact:+86-315-8309571
Address:2-7-420 Jidong Building Materials Commercial Center, Tangshan, Hebei, 064000 China
Hunan Zhongqi Pharmaceutical Co., Ltd
website:http://www.hnzqzy.com
Contact:0730-8722288 13807308622
Address:Wanjiafan Road ,Yueyang Economic And Technological Development Zone ,Hunan,PRC
Taimai Sanluck Pharmaceutical Co.,Ltd
Contact:86-592-7662921
Address:8D,No.186,Huarong Road,Huli,Xiamen,China
Chemvon Biotechnology Co. Ltd.
website:http://www.chemvon.com
Contact:86-21-58550039;86-21-31268550-8004
Address:Suite B-10#, 6999 Chuansha Road, Pudong District, Shanghai 201202, China
Doi:10.1002/chem.201805633
(2019)Doi:10.1016/j.molcatb.2010.11.003
(2011)Doi:10.1080/00397910802621723
(2009)Doi:10.1002/jps.2600830314
(1994)Doi:10.1007/BF00799954
(1983)Doi:10.1139/v67-423
(1967)