Results 121 to 130 of about 57,276 (400)
Oscillatory thermal instability and the Bhopal disaster [PDF]
arXiv, 2010 A stability analysis is presented of the hydrolysis of methyl isocyanate (MIC) using a homogeneous flow reactor paradigm. The results simulate the thermal runaway that occurred inside the storage tank of MIC at the Bhopal Union Carbide plant in December 1984. The stability properties of the model indicate that the thermal runaway may have been due to a
arxiv
Interstellar HOCN in the Galactic center region [PDF]
, 2010 Aims. Our aim is to confirm the interstellar detection of cyanic acid, HOCN, in the Galactic center clouds. It has previously been tentatively detected only in Sgr B2(OH). Methods. We used a complete line survey of the hot cores Sgr B2(N) and (M) in the 3 mm range, complemented by additional observations carried out with the IRAM 30 m telescope at ...
arxiv +1 more source
Synthesis of Ureido-Linked Glycosylated Amino Acids from N α-Fmoc-Asp/Glu-5-oxazolidinones and Their Application to Neoglycopeptide Synthesis [PDF]
, 2008 A simple route for the synthesis of ureido-linked glycosylated amino acids has been described. The key step involves the reaction of isocyanates derived from N α-Fmoc-Asp/Glu-5-oxazolidinones 1 with glycosyl amines followed by hydrolysis.
Sureshbabu, V.V., Venkataramanarao, R.
core +1 more source
Angewandte Chemie International Edition, Accepted Article.A one‐pot synthesis for previously unknown heavy homologues of group 9 metal carbynes [(Me3P)3CoºGeAr*] (1), [(Me3P)3RhºGeAr*] (2), [(Me3P)3IrºGeAr*] (3), [(Me3P)3IrºSnAr*] (5), and [(Et3P)3IrºPbAr*] (7) is presented [Ar* = C6H3‐2,6‐(Trip)2, Trip = 2,4,6‐C6H2iPr3]. During these preparations the tetrylidynes [(Me3P)3RhºSnAr*] (4), and [(Me3P)3RhºPbAr*] (
Lennart Gerhard Holzapfel +5 more
wiley +1 more source
Oscillatory thermal instability - the Bhopal disaster and liquid bombs [PDF]
arXiv, 2011 Thermal runaway reactions were involved in the Bhopal disaster of 1984, in which methyl isocyanate was vented from a storage tank of the liquid, and occur in liquid peroxide explosions, yet to date there have been few investigations into the mechanism of thermal runaway in such liquid thermoreactive systems. Consequently protocols for storing thermally
arxiv
A high resolution study of complex organic molecules in hot cores [PDF]
, 2014 We present the results of a line identification analysis using data from the IRAM Plateau de Bure Inferferometer, focusing on six massive star-forming hot cores: G31.41+0.31, G29.96-0.02, G19.61-0.23, G10.62-0.38, G24.78+0.08A1 and G24.78+0.08A2. We identify several transitions of vibrationally excited methyl formate (HCOOCH$_3$) for the first time in ...
arxiv +1 more source
Polymerization of Blocked Isocyanate Functional Polymer Surfaces and Post-Polymerization Modification By Thiol-Isocyanate Reactions [PDF]
, 2015 Direct polymerization of isocyanate-functional monomers has been achieved with controlled radical polymerizations (CRP) for precisely engineered modification platforms with highly reactive side chains.
Tretbar, Chase A
core +1 more source
A class of carbonic anhydrase I – selective activators
Journal of Enzyme Inhibition and Medicinal Chemistry, 2017 A series of ureido and bis-ureido derivatives were prepared by reacting histamine with alkyl/aryl-isocyanates or di-isocyanates. The obtained derivatives were assayed as activators of the enzyme carbonic anhydrase (CA, EC 4.2.1.1), due to the fact that ...
Erol Licsandru +4 more
doaj +1 more source
Catalytic Annulation of Epoxides with Heterocumulenes by the Indium-Tin System
Molecules, 2018 In the synthesis of five-membered heterocycles by the annulation of epoxides with heterocumulenes such as carbon dioxide and isocyanates, we developed the indium-tin catalytic system and synthesized various cyclic adducts including novel types products ...
Itaru Suzuki +3 more
doaj +1 more source
Cyclo-oligomerization of isocyanates with Na(PH2) or Na(OCP) as “P–” anion sources
Chemical Science, 2015 Na(OCP) initiates the catalytic cyclo-trimerization of isocyanates involving the mutual formation of P-heterocycles and spiro phosphoranides (shown on the right) as reactive intermediates.
Dominikus Heift +4 more
semanticscholar +1 more source