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Transformation of Formaldehyde Aminals Into Diaminocarbenes and Carbenium Salts
The reactivities of the two stable diaminocarbenes 1,3-di-'tert '-butyl-imidazole-2-ylidene 1 and 1,3-di-'tert '-butyl-imidazolidine-2-ylidene 2 toward hydrogen, oxygen, water and carbon monoxide and SO2 were investigated. Contrary to common belief the deterioration of 1 and 2 is not due to oxidation by triplet oxygen, but is the result of hydrolysis. The hydrolysis rate at room temperature is very low for the aromatically stabilized 1 but very rapid for the non-aromatic 2. The reactions are not acid or base catalyzed. Computational data show that the reaction with triplet oxygen is only kinetically hindered and that the oxidation of 1 and 2 to the respective ureas is in fact strongly exothe...
Directory of Graduate Research
Faculties, publications and doctoral theses in departments or divisions of chemistry, chemical engineering, biochemistry and pharmaceutical and/or medicinal chemistry at universities in the United States and Canada.
Smart Inorganic Polymers
Provides complete and undiluted knowledge on making inorganic polymers functional. This comprehensive book reflects the state of the art in the field of inorganic polymers, based on research conducted by a number of internationally leading research groups working in this area. It covers the synthesis aspects of synthetic inorganic polymers and looks at multiple inorganic monomers as building blocks, which exhibit unprecedented electronic, redox, photo-emissive, magnetic, self-healing and catalytic properties. It also looks at the applications of inorganic polymers in areas such as optoelectronics, energy storage, industrial chemistry, and biology. Beginning with an overview of the use of sma...
BRANCHES
The Ramifiation of a Central American Family shares the wealth of facts not only about the Zelayas, Nuilas, Turcios and Suarez families, but the history of Honduras- its discovery, conquest, its pacification, the building of its iconic houses of worship and the ever present revolutions. the modern history of Central America and of my family includes the 20's and 30's, when governmental attempts to dissolve power that up to then had rested on the small elite segment of society gave way to dictatorial states everywhere but, Costa Rica. for the next fifty years with only brief and occasional lapses dictators were at the helm. and it was in this environment where families including mine, survive...
