📜1,1,2,2-Tetrakis-Methylsulfanyl-1,2-Bis-Trimethylsilanyl-Ethane 反应生成 三甲基甲硫基硅烷 参考文献:Schlecker,R. Et Al.,Chemische Berichte,1977,Vol. 110,P. 2880-2904 标题:Schlecker,R. Et Al.,Chemische Berichte,1977,Vol. 110,P. 2880-2904
专利信息
专利号:US-6022977-A 优先权日:1997-03-26 标 题 :Dynamic resolution of isoxazoline thioesters to isoxazoline carboxylic acids 发明人:ZHANG LIN-HUA; ANZALONE LUIGI; PESTI JAAN A; YIN JIANGUO 权利人:DU PONT PHARM CO 摘要:The present invention relates generally to a novel method for preparation of substituted isoxazolin-5-yl acetic acid in high optical purity from a stereoisomeric mixture of an esterified substituted isoxazolin-5-yl acetate. The products are useful in the synthesis of compounds for pharmaceuticals, especially the treatment of thrombolytic disorders, and agricultural products.
专利号:US-4058567-A 优先权日:1974-08-21 标题:Cyclopentene sulfoxides 发明人:EVANS DAVID A 权利人:UNIV CALIFORNIA 摘要:The novel synthesis of chemical compounds of the structures 1 and 2 is disclosed. ##STR1## wherein R 1 is a member of the group consisting of alkyl, (cis or trans) alkenyl and alkynyl groups of from 2 to 9 carbon atoms which can be substituted by a terminal 1,3-dioxyacyclopentyl, a carboxyl or a carboalkoxy (--COOR') group where R' is an alkyl group of 1 to 6 carbon atoms. Compounds 1 and 2 are shown to be useful intermediates in prostaglandin synthesis.
专利号:US-4052434-A 优先权日:1974-08-21 标 题 :Prostaglandin intermediates 发明人:EVANS DAVID A 权利人:UNIV CALIFORNIA 摘要:The novel synthesis of chemical compounds of the structures 1 and 2 is disclosed. ##STR1## Compounds 1 and 2 are shown to be useful intermediates in prostaglandin synthesis.
专利号:US-4107181-A 优先权日:1976-05-17 标 题 :Useful prostaglandin intermediates 发明人:EVANS DAVID A 权利人:UNIV CALIFORNIA 摘要:The novel synthesis of chemical compounds of the structures 1 and 2 is disclosed. Compounds 1 and 2 are shown to be useful intermediates in prostaglandin synthesis.
专利号:US-5077046-A 优先权日:1980-11-28 标题:Polyprenyl composition or compounds and process for the production thereof 发明人:TANAKA YASUYUKI; IBATA KOICHI; MIZUNO MASAO; NINAGAWA YOICHI; NISHIDA TAKASHI 权利人:KURARAY CO 摘要:A polyprenyl composition consisting essentially of a mixture of polyprenyl compounds represented by the following formula ##STR1## wherein A 1 represents a hydroxyl or acetyloxy group, ##STR2## represents a trans-isoprene unit, ##STR3## represents a cis-isoprene unit, and n is an integer of from 11 to 19, said mixture containing substantial amounts of at least three compounds of formula (I) wherein n represents 14, 15 and 16 respectively as essential ingredients in a total amount of at least 70% by weight based on the weight of the mixture; and new compounds derived from the polyprenyl compounds of formula (I). These composition and compounds are useful for the synthesis of mamammalian dolichols. The polyprenyl composition can be prepared by extracting the leaves of Ginkgo biloba or Cedrus deodara with an oil-soluble organic solvent; if required, hydrolyzing the extract; and subjecting the extract to one or more of chromatography, fractional dissolution, fractional refrigerating precipitation and molecular distillation, thereby separating and recovering a fraction having a specified Rf value in silica thin-layer chromatography.
专利号:US-11311856-B2 优先权日:2017-11-29 标 题 :Vanadium metal-organic framework for selective adsorption 发明人:LONG JEFFREY R; JARAMILLO DAVID E; REED DOUGLAS A 权利人:UNIV CALIFORNIA 摘要:A permanently porous vanadium(II)-containing metal-organic framework (MOF) with vanadium(II) centers and methods for synthesis of such MOF frameworks are provided. Methods for using such compounds to selectively react with N2 over CH4 are provided. In the synthetic methods, a vanadium source, such as VY2(tmeda)2, where Y is a halogen and tmeda is N,N,N′,N′-tetramethylethane-1,2-diamine and a H2(ligand) are reacted in the presence of acid in a solvent at between 110° C. and 130° C. to form an intermediate product. The intermediate product is collected and washed with a washing agent, such as DMF and acetonitrile, and the vanadium(II) based MOF is activated by heating the washed intermediate product to at least 160° C. under dynamic vacuum.
摘要:Witt, D., Science of Synthesis Knowledge Updates, (2011) 3, 290. 摘要:Witt, D., Science of Synthesis Knowledge Updates, (2011) 3, 283. 摘要:Witt, D., Science of Synthesis Knowledge Updates, (2011) 3, 285. 摘要:Witt, D., Science of Synthesis Knowledge Updates, (2011) 3, 289. 摘要:Witt, D., Science of Synthesis Knowledge Updates, (2011) 3, 289.