نتایج جستجو برای: chlorides

تعداد نتایج: 3219  

Journal: :Chemical communications 2008
Albrecht Metzger Fabian M Piller Paul Knochel

Benzylic zinc chlorides bearing various functional groups are smoothly prepared by the direct insertion of magnesium into benzylic chlorides in the presence of LiCl and ZnCl(2).

2005

CONSIDERABLE emphasis has been laid during recent years on the analogies between colloidal systems and lving cells in regard to their behaviour towards water and dissolved substances and it has become evident that the study of colloidal systems must throw light on the constitution and behaviour of living tissues. It is therefore of interest to enquire whether anything analogous to the phenomeno...

Journal: :Organic letters 2008
Kevin M Kuhn Robert H Grubbs

A process for the preparation of symmetric and unsymmetric imidazolinium chlorides that involves reaction of a formamidine with dichloroethane and a base (a) is described. This method makes it possible to obtain numerous imidazolinium chlorides under solvent-free reaction conditions and in excellent yields with purification by simple filtration. Alternatively, symmetric imidazolinium chlorides ...

Journal: :Molecules 2011
Rui Ding Yong He Xiao Wang Jingli Xu Yurong Chen Man Feng Chuanmin Qi

Treatment of substituted benzyl alcohols with tosyl chloride resulted in the formation of the corresponding chlorides, not the usual tosylates. A series of experiments demonstrated that it was possible to predict whether chlorination or tosylation would occur for substituted benzyl alcohols and pyridine methanols. Treatment of electron withdrawing group-substituted benzyl alcohols with tosyl ch...

2016
Victor William Saeger F. H. Spedding

The aqueous solution behavior of some rare-earth chlorides has been investigated at 25° C. in the concentration range between 0.02 molal and saturation. Density measurements on solutions of lanthanum, neodymium, samarium, gadolinium, dysprosium, erbium, and ytterbium chlorides were carried out by a pycnometric method with an estimated accuracy of 1 x 10-5 gm.per ml. From the density data the ap...

2014
Jiadi Zhang Ana Bellomo Nisalak Trongsiriwat Tiezheng Jia Patrick J. Carroll Spencer D. Dreher Matthew T. Tudge Haolin Yin Jerome R. Robinson Eric J. Schelter Patrick J. Walsh

Although the past 15 years have witnessed the development of sterically bulky and electron-rich alkylphosphine ligands for palladium-catalyzed cross-couplings with aryl chlorides, examples of palladium catalysts based on either triarylphosphine or bidentate phosphine ligands for efficient room temperature cross-coupling reactions with unactivated aryl chlorides are rare. Herein we report a pall...

Journal: :Chemical communications 2008
Matthias A Schade Albrecht Metzger Stephan Hug Paul Knochel

Benzylic zinc reagents prepared by direct insertion of zinc to benzylic chlorides in the presence of LiCl undergo smooth cross-coupling reactions with aromatic chlorides, bromides and tosylates using Ni(acac)(2) and PPh(3) as a catalyst system.

2003
J. COHEN

In a previous article (1)) on the secretion of gastric juice in fever, it was reported that the concentration of’ chlorides in gastric juice was constant or slightly reduced. In this present paper I wish to emphasize the relation between the secretion of total chlorides in gastric juice and the secretion of free hydrochloric acid. Most of the data for this paper were obtained at that time but u...

Journal: :The Journal of Experimental Medicine 2004
Russell L. Haden Thomas G. Orr

The blood findings in five monkeys after experimental high intestinal obstruction are reported. All animals showed the marked rise in non-protein nitrogen characteristic of intestinal obstruction in man and the dog. Two monkeys showed a very marked drop in chlorides, the others a less marked fall. Coincident with the change in chlorides there is a rise in the CO(2)-combining power. The uric aci...

Journal: :The Journal of Experimental Medicine 1936
K. Landsteiner John Jacobs

In continuation of previous work sensitization experiments have been made with various substances such as urushiol, benzyl chlorides, and acyl chlorides. In the case of a series of substituted benzenes (Cl, NO(2)) a connection between sensitizing capacity and lability of the Cl or NO(2) groups has been shown, indicating the formation of conjugated antigens in the animal. This led to the study o...

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