专利号:US-5211889-A 优先权日:1991-08-01 标 题:Soluble highly reactive form of calcium and reagents thereof 发明人:RIEKE REUBEN D 权利人:UNIV NEBRASKA 摘要:A soluble highly reactive form of calcium, prepared from Ca(II) salts and a reducing agent in ethereal, polyethereal, or hydrocarbon solvents, is presented. This form of calcium can be used in the preparation of organocalcium reagents. The organocalcium reagents resulting from the reaction of the soluble highly reactive calcium with organic compounds containing either halide, cyanide, a 1,3-diene, or a polyunsaturated functionality, are stable, useful reagents for organic synthesis. The organocalcium halide reagents undergo Grignard-type reactions. They also undergo reactions with Cu(I) salts to form organocalcium cuprate reagents. The organocalcium cuprate reagents undergo a variety of cross-coupling reactions. The soluble highly reactive calcium reacts with 1,3-dienes to yield the corresponding 2-butene-1,4-diylcalcium complexes. These bis-organocalcium reagents can undergo dialkylation reactions with α,ω-alkylene dihalides and dichlorosilanes to form the corresponding 3-, 5-, and 6-membered ring derivatives. The soluble highly reactive calcium also reacts with organic dihalides to form mono- or diorganocalcium compounds which can be converted into a wide variety of polymers.
专利号:WO-2024182597-A1 优先权日:2023-03-02 标题 :Visible light driven co2 valorization 发明人:WEAVER JIMMIE D; SCHOCH TIM 权利人:THE BOARD OF REGENTS FOR THE OKLAHOMA AGRICULTURAL AND MECH COLLEGES 摘要:A method of carbamate ester synthesis wherein a first component is reacted with a cyclohexene by the addition of CO 2 , a photocatalyst, and light to produce an arylcyclohexyl carbamate ester. The first component is an amine, a carbamate salt produced from the amine, or a mixture thereof. In some embodiments, the method further includes treating the arylcyclohexyl carbamate ester with a base in the presence of an alcohol to produce an alkane carbamate ester and an arylcyclohexanol. Further, the method can include dehydrating the arylcyclohexanol in the presence of an acid to regenerate the arylcyclohexene.
专利号:US-6316437-B1 优先权日:1999-09-30 标题:Spirohydantoin compounds and uses thereof 发明人:HOFFMAN JACOB M 权利人:MERCK & CO INC 摘要:Spirohydantoin compounds and their pharmaceutically acceptable salts are disclosed. The synthesis of these compounds and their use as alpha 1a adrenergic receptor antagonists is also described. One application of these compounds is in the treatment of benign prostatic hyperplasia. These compounds are typically selective in their ability to relax smooth muscle tissue enriched in the alpha 1a receptor subtype without at the same time inducing hypotension. One such tissue is found surrounding the urethral lining. Therefore, one utility of the instant compounds is to provide acute relief to males suffering from benign prostatic hyperplasia, by permitting less hindered urine flow. Another utility of the instant compounds is provided by combination with a human 5-alpha reductase inhibitory compound, such that both acute and chronic relief from the effects of benign prostatic hyperplasia can be achieved.
专利号:WO-9835955-A1 优先权日:1997-02-13 标 题 :Novel (thio)(meth)acrylate monomers, intermediate compounds for the synthesis of these monomers, polymerisable compositions and resulting polymers and optical and ophthalmologic applications thereof
专利号:CN-102838466-A 优先权日:2012-10-08 标题:Synthesis of 4-(2,3-difluoro-4-alkoxy)phenylcyclohexanone
专利号:US-5384078-A 优先权日:1991-08-01 标 题:Soluble highly reactive form of calcium and reagents thereof 发明人:RIEKE REUBEN D 权利人:UNIV NEBRASKA 摘要:A soluble highly reactive form of calcium, prepared from Ca(II) salts and a reducing agent in ethereal, polyethereal, or hydrocarbon solvents, is presented. This form of calcium can be used in the preparation of organocalcium reagents. The organocalcium reagents resulting from the reaction of the soluble highly reactive calcium with organic compounds containing either halide, cyanide, a 1,3-diene, or a polyunsaturated functionality, are stable, useful reagents for organic synthesis. The organocalcium halide reagents undergo Grignard-type reactions. They also undergo reactions with Cu(I) salts to form organocalcium cuprate reagents. The organocalcium cuprate reagents undergo a variety of cross-coupling reactions. The soluble highly reactive calcium reacts with 1,3-dienes to yield the corresponding 2-butene-1,4-diylcalcium complexes. These bis-organocalcium reagents can undergo dialkylation reactions with α,ω-alkylene dihalides and dichlorosilanes to form the corresponding 3-, 5-, and 6-membered ring derivatives. The soluble highly reactive calcium also reacts with organic dihalides to form mono- or diorganocalcium compounds which can be converted into a wide variety of polymers.
摘要:Wicha, J., Science of Synthesis, (2009) 48, 165. 摘要:Kostikov, R. R.; Khlebnikov, A. F.; Sokolov, V. V., Science of Synthesis, (2010) 47, 799. 摘要:Arzneimittel-Forschung. Drug Research., 19(1254), 1969 []