Results 341 to 350 of about 57,413 (403)
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Angewandte Chemie, 2021
Herein, a remarkable conjugated bis-guanidinate (CBG) supported zinc hydride, [{LZnH}2; L = {(ArHN)(ArN)-C=N-C=(NAr)(NHAr); Ar = 2,6-Et2-C6H3}] (I) catalyzed partial reduction of heteroallenes via hydroboration is reported.
R. Sahoo +2 more
semanticscholar +1 more source
Herein, a remarkable conjugated bis-guanidinate (CBG) supported zinc hydride, [{LZnH}2; L = {(ArHN)(ArN)-C=N-C=(NAr)(NHAr); Ar = 2,6-Et2-C6H3}] (I) catalyzed partial reduction of heteroallenes via hydroboration is reported.
R. Sahoo +2 more
semanticscholar +1 more source
Dermatitis, 2012
Owing to the widespread use of isocyanate-derived products across multiple industries, it is important for physicians to be aware of their sensitizing potential. We first provide a general overview of isocyanates and the industries that may be associated with exposure to these compounds.
Kurt S, Wenk, Alison, Ehrlich
openaire +2 more sources
Owing to the widespread use of isocyanate-derived products across multiple industries, it is important for physicians to be aware of their sensitizing potential. We first provide a general overview of isocyanates and the industries that may be associated with exposure to these compounds.
Kurt S, Wenk, Alison, Ehrlich
openaire +2 more sources
Rhodium-Catalyzed Synthesis of Amides from Functionalized Blocked Isocyanates
ACS Catalysis, 2019Isocyanates are useful building blocks for the synthesis of amides, although their widespread use has been limited by their high reactivity, which often results in poor functional group tolerance and a propensity to oligomerize.
Joshua Derasp, André M. Beauchemin
semanticscholar +1 more source
Journal of Heterocyclic Chemistry, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Jarle Holt +3 more
openaire +1 more source
AbstractFor Abstract see ChemInform Abstract in Full Text.
Jarle Holt +3 more
openaire +1 more source
Rhodium(III)-Catalyzed C(sp3)-H Bond Aminocarbonylation with Isocyanates.
Journal of Organic Chemistry, 2018Rh(III)-catalyzed C(sp3)-H bond aminocarbonylation of 8-methylquinolines and isocyanates has been realized under mild conditions. This approach is applicable to different aryl and alkyl isocyanates, leading to the synthesis of various α-quinolinyl amide ...
Huaiqing Zhao +6 more
semanticscholar +1 more source
The reaction of isocyanates and isocyanates with bisulphite salts
Australian Journal of Chemistry, 1976Organic isocyanates and isothiocyanates readily add bisulphite to form N-substituted aminooxomethanesulphonic acid salts (2), and the thioxo analogues respectively. As aryl isocyanates react rapidly with water, it is convenient to use triethylammonium bisulphite in an aprotic solvent for the addition.
JR Dalton, JA Maclaren, A Kirkpatrick
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Alkyl Isocyanates via Manganese-Catalyzed C-H Activation for the Preparation of Substituted Ureas.
Journal of the American Chemical Society, 2017Organic isocyanates are versatile intermediates that provide access to a wide range of functionalities. In this work, we have developed the first synthetic method for preparing aliphatic isocyanates via direct C-H activation.
Xiong Huang +5 more
semanticscholar +1 more source
Tetraarylphosphonium Salt-Catalyzed Synthesis of Oxazolidinones from Isocyanates and Epoxides.
Organic Letters, 2017Preparation of a range of oxazolidinones, including enantioenriched N-aryl-substituted oxazolidinones, in which tetraarylphosphonium salts (TAPS) catalyze the [3 + 2] coupling reaction of isocyanates and epoxides effectively, is described.
Y. Toda +5 more
semanticscholar +1 more source
Sulfonylmethyl isocyanates, a new class of isocyanates
Recueil des Travaux Chimiques des Pays-Bas, 1966AbstractFive alkyl‐ and aryl‐sulfonylmethyl isocyanates have been ...
A. M. Van Leusen +2 more
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WORKERS' EXPOSURE TO ISOCYANATES
American Industrial Hygiene Association Journal, 1992A model of exposure to isocyanates, based on knowledge of industrial processes and starting materials and the results of industrial hygiene surveys, is proposed. This model of exposure suggests the concentration and physical form of airborne isocyanate monomers and oligomers.
J. Lesage +4 more
openaire +3 more sources