Journal of the Chemical Society, Dalton Transactions p. 457 - 460 (1989)
Update date:2022-08-05
Topics:
Adlington, Neil K.
Miller, J. David
Tahir, Tahir A.
When an aryltellurium trichloride reacts with methanol in a mixed solvent also containing benzene or dioxane the reaction can be followed by monitoring the generation of acid.The first Te-Cl bond cleavage is acid catalysed and is rate determining.It exhibits a small activation enthalpy, but a large and negative activation entropy.The other trihalides have similar activation parameters.The mechanism is believed to involve protonation of a co-ordinated Cl, with dissociative loss of HCl being rate determining.The compounds RTe(O)Cl and RTe(OMe)2 Cl have been isolated as solid products but, since the reactions occurring in solution are reversible, the products in dilute solution may be different from these.Kinetic experiments to study the variation of rate with the solvent composition and the nature of the alcohol are also reported, as are results of reactions in aqueous dioxane.
View MoreContact:+86-571-86025531 / 86024803
Address:1218-24 Guangyin Mansion,42 Fengqi East Road
Shanghai Dianyang Industry Co.,ltd
Contact:+86 21 6492 4669
Address:Chejing RD, Songjiang District, Shanghai, China
Hangzhou 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
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
Xiamen Hisunny Chemical Co.,Ltd
website:http://www.hisunnychem.com
Contact:+86-592-3327115
Address:Unit 603,No.879,Xiahe Road,Meixin Building,Xiamen,China
Doi:10.1016/S0031-9422(99)00319-2
(1999)Doi:10.1021/ol1003093
(2010)Doi:10.1016/j.bmcl.2010.01.095
(2010)Doi:10.1002/cbic.201900473
(2020)Doi:10.1021/ja511778a
(2015)Doi:10.1016/j.bmcl.2010.01.001
(2010)