专利号:US-8492541-B1 优先权日:2007-07-16 标 题:Synthesis of azido heterocycles 发明人:DUDDU RAJA; DAVE PARITOSH; DAMAVARAPU REDDY; SURAPANENI RAO 权利人:DUDDU RAJA; DAVE PARITOSH; DAMAVARAPU REDDY; SURAPANENI RAO; US ARMY 摘要:Energetic candidate azido heterocycles and their synthesis are described.
专利号:WO-2007005037-A1 优先权日:2005-06-30 标 题 :Process for synthesis of diorganosilanes by disproportionation of hydridosiloxanes 发明人:RUBINSZRAJN SLAWOMIR; CELLA JAMES ANTHONY; CHOJNOWSKI JULIAN; FORTUNIAK WITOLD; KURJATA JAN 权利人:GEN ELECTRIC; RUBINSZRAJN SLAWOMIR; CELLA JAMES ANTHONY; CHOJNOWSKI JULIAN; FORTUNIAK WITOLD; KURJATA JAN 摘要:The present invention provides a novel method for the preparation of diorganosilanes by disproportionation of a hydridosiloxanes comprising at least one terminal SiH group and at least one siloxane bond in the presence of Lewis acid catalysts. The reaction is both selective and occurs under mild conditions. The triaryl borane, tris(petafluorophenyl)borane, is especially suited for use as a catalyst in the reaction. Organic catalysts such as tris(pentafluorophenyl)borane are typically preferred owing to their greater solubility and stability in the reaction mixture, relative to inorganic Lewis acid catalysts. The product, diorganosilane may be isolated from the product mixture by conventional techniques such as distillation.
专利号:US-7148370-B1 优先权日:2005-07-20 标 题 :Process for synthesis of diorganosilanes by disproportionation of hydridosiloxanes 发明人:RUBINSZTAJN SLAWOMIR; CELLA JAMES ANTHONY; CHOJNOWSKI JULIAN; FORTUNIAK WITOLD; KURJATA JAN 权利人:GEN ELECTRIC 摘要:The present invention provides a novel method for the preparation of diorganosilanes by disproportionation of a hydridosiloxanes comprising at least one terminal SiH group and at least one siloxane bond in the presence of Lewis acid catalysts. The reaction is both selective and occurs under mild conditions. The triaryl borane, tris(petafluorophenyl)borane, is especially suited for use as a catalyst in the reaction. Organic catalysts such as tris(pentafluorophenyl)borane are typically preferred owing to their greater solubility and stability in the reaction mixture, relative to inorganic Lewis acid catalysts. The product, diorganosilane may be isolated from the product mixture by conventional techniques such as distillation.
专利号:US-8133993-B1 优先权日:2005-09-21 标题:Hydrogenolytic denitration of polynitro compounds: pentanitrohexaazaisowurtzitane 发明人:DUDDU RAJA; DAVE PARITOSH; DAMAVARAPU REDDY; SURAPANENI RAO 权利人:DUDDU RAJA; DAVE PARITOSH; DAMAVARAPU REDDY; SURAPANENI RAO; US ARMY 摘要:A method for synthesizing pentanitrohexaazaisowurtzintane under neutral reaction conditions. Which synthesis involves treating a solution of hexanitrohexaazaisowurtzitane in ethyl acetate in the presence of a catalytic quantity of palladium on a carbon substrate, until a heterogeneous mixture is formed. This heterogeneous mixture is hydrogenated under a balloon atmosphere until the starting hexanitrohexaazaisowurtzitane is substantially reacted. The resulting pentanitrohexaazaisowurzitane mixture is filtered, dried and recovered from the dried residue through a Si-gel column.
专利号:EP-1913059-A1 优先权日:2005-06-30 标题:Process for synthesis of diorganosilanes by disproportionation of hydridosiloxanes
专利号:US-8153786-B1 优先权日:2007-07-16 标 题 :Synthesis of azido heterocycles