📜Alkaline Earth Salt Of/the/ Methylsulfuric Acid置于lithium,乙胺体系中,化学反应生成三乙基氢化锗 参考文献:Kraus; Flood,Journal Of The American Chemical Society,1932,Vol. 54,P. 1642,1643 标题:Kraus; Flood,Journal Of The American Chemical Society,1932,Vol. 54,P. 1642,1643
专利号:US-7307177-B2 优先权日:2004-12-17 标题:Metallocene complexes, their synthesis and use in catalyst systems for olefin polymerization 发明人:HUANG LEGAL REPRESENTATIVE JIL; CANICH JO ANN M; COKER CATALINA L 权利人:EXXONMOBIL CHEM PATENTS INC 摘要:A metallocene complex is represented by the the formulan n(C p R 5 ) n MX k n nwhere C p (each occurrence) is a cyclopentadienyl group; each of the five R substituents on the or each cyclopentadienyl group is independently selected from hydrogen, C 1 to C 30 substituted or unsubstituted hydrocarbyl, halohydrocarbyl, silylhydrocarbyl or silylhalohydrocarbyl, wherein two adjacent R substituents may be joined to form part of a saturated, partially unsaturated or aromatic monocyclic or polycyclic ring structure, and SiR′ 2 NR″ 2 where each of the two R′ substituents is independently selected from hydrogen, C 1 to C 30 substituted or unsubstituted hydrocarbyl, halohydrocarbyl, silylhydrocarbyl or silylhalohydrocarbyl, wherein two adjacent R′ substituents may be joined to form part of a saturated, partially unsaturated or aromatic monocyclic or polycyclic ring structure, and each of the two R″ substituents is independently selected from C 2 to C 30 substituted or unsubstituted hydrocarbyl, halohydrocarbyl, silylhydrocarbyl or silylhalohydrocarbyl, wherein two adjacent R″ substituents may be joined to form part of a saturated, partially unsaturated or aromatic monocyclic or polycyclic ring structure; n is 1 or 2; M is a metal of valence m from Groups 4 to 11 of the Periodic Table of Elements, k is equal to m minus n and the or each X substituent is a univalent anionic ligand, or two X substituents are joined and bound to the metal atom to form a metallocycle ring, or two X substituents are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand, provided that at least one R substituent on the or one cyclopentadienyl group is SiR′ 2 NR″ 2 , provided that at least one R substituent on at least one C p is SiR′ 2 NR″ 2 and provided that one or the C p may be bridged by a bridging group to another C p group, or a heteroatom containing group, where the bridging group replaces one R group on the C p group(s) or a hydrogen on a heteratom containing group.
专利号:FR-2740451-A1 优先权日:1995-10-27 标题:NEW INTERMEDIARIES FOR THE HEMISYNTHESIS OF TAXANES, THEIR METHODS OF PREPARATION AND THEIR USE IN THE GENERAL SYNTHESIS OF TAXANES
专利号:CN-1200731-A 优先权日:1995-10-27 标题 :Intermediate for semi-synthesis of taxane and preparation method thereof
专利号:CN-100374428-C 优先权日:1995-10-27 标题:Intermediate for semi-synthesis of taxane and preparation method thereof
专利号:EP-0134324-B1 优先权日:1983-08-15 标 题 :Production of ethanol from methanol and synthesis gas