会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 32. 发明授权
    • Method of producing onium-salt complex compounds
    • 生产盐复合化合物的方法
    • US3448127A
    • 1969-06-03
    • US3448127D
    • 1964-03-27
    • SIEMENS AG
    • DOTZER RICHARD
    • C07C395/00C07F3/00C07F5/00C07F5/06C07F9/00C07F9/54C07F9/90C25C3/00C25D3/02C25D3/44C25D3/66H01G9/02H01G9/022H01G9/028
    • H01G9/028C07C395/00C07F3/00C07F5/00C07F5/006C07F5/062C07F9/00C07F9/5456C07F9/90C07F9/904C07F9/908C25C3/00C25D3/02C25D3/44C25D3/66H01G9/022
    • Onium salts having a complex anion are prepared by the reaction of (a) an electron donor compound of formula R1kHlkY, (b) a electron acceptor compound of formula MR11nX1mn and (c) an organic compound RX, wherein R, R1 and R11 are alkyl or aryl groups, X is halogen, pseudohalogen or an acid residue, X1 is halogen or hydrogen, Y is N, P, As, Sb, Bi, S, Se or Te, M is Be, Zn, Cd, B, Al, In, Ga, Tl, Si, Ge, Pb or Sn, l and m are integers representing the capacities of Y and M respectively to combine with hydrogen, and k and n are 0 or an integer from 1 to l or m respectively. The reaction in its simplest form may be represented by:-D + A + RX --> [DR]+[AX]-wherein D represents the electron donor and A the electron acceptor, but compounds formed by the reaction of two molecules of acceptor with one each of donor and RX ar also disclosed. The reaction may be carried out by first forming a co-ordination compound between donor and acceptor and reacting this with RX, or an adduct or mixture may be formed from the acceptor and RX which is then reacted with the donor, or the donor and RX may be first mixed and then reacted with the acceptor. Trimethylammonium triethylchloroaluminate obtained by first passing triethylamine gas into triethylaluminium to form a 1 : 1 complex and passing methyl chloride into the product. By passing further methyl chloride there is obtained the complex Triethylpropylstibonium triethylbromoindanate is prepared by reacting methylantimony and triethylindium under an inert gas and adding N :propyl bromide to the product. Further examples are indicated by the equations:- The complex onium salts may be degraded by such methods as solvolysis with methanol or water, oxidative cleavage or displacement with a stronger complexing agent for the acceptor compound to give the simple onium salt (DR)+X- where D represents the donor compound. For example, tetraethylstibonium triethyl bromoaluminate in solution in dichloromethane is added to methanol, ethane is evolved and aluminium methoxide removed by decantation, and the residue worked up to yield tetraethylstibonium bromide.
    • 38. 发明授权
    • Production of alkali metal borohydrides
    • 生产碱金属硼氢化物
    • US3215491A
    • 1965-11-02
    • US5436760
    • 1960-09-07
    • BAYER AG
    • FRIEDRICH SCHUBERTKONRAD LANG
    • C01B6/00C07F5/00
    • C07F5/006C01B6/00
    • Alkali metal borohydrides are produced by reacting an alkali metal hydride with a boron trihalide or an addition compound thereof in the presence of an amino borane catalyst of the formula RnB(NR1R11)3-n where R is hydrogen or an alkyl or an aryl radical, R1 is hydrogen or an aliphatic or aryl radical, R11 is an aliphatic or aryl radical, n is an integer from 0 to 2, and the catalyst is present in amounts of from 0,5 to 50% by weight of the alkali metal hydride. The process is carried out in a high boiling (above 180 DEG C.) inert suspension agent such as aliphatic and aromatic hydrocarbons, or inert oils such as tetra alkyl silanes, ethers, and polyethers, and at a temperature between 30 DEG C. and the decomposition temperature of the alkali metal borohydride formed. The boron trihalide addition compounds may be those with di lower alkyl ethers, cyclic alkyl ethers, tri-lower alkyl amines, tertiary mixed lower alkyl aryl amines and pyridine, or it may be Na2O.4BF3. The catalyst may be produced in situ by reacting an amine (R1R11NH) with an N-alkyl borazane selected from pyridine borane, N-tri-lower alkyl borazanes and N-di-lower alkyl borazanes; or R1R11NH with an alkali metal borohydride and a boron halide compound; or R1R11NH with a hydrocarbon substituted diborane of the formula (RnBH3-n)2 where n = 1 or 2. A co-catalyst may be added to the reaction mixture, which is a tertiary alkyl or aryl amine or an alkyl ether capable of forming addition compounds with boron trihalides. The co-catalyst may be present in amounts of 0,5 to 50% by weight of the alkali metal hydride. Examples are given in which boron trifluoride-tetrahydrofuranate is reacted with sodium hydride in the presence of (C3H7)2BN(C4H9)2, acid trisanilide, boric acid trisanilide with a cocatalyst triethylamine, N-triethylborazane with a co-catalyst dibutylamine. Numerous examples of R, R1 and R11 and also of the boron trihalide addition compounds are given.ALSO:Amino boranes of formula RnB(NR1R11)3,n where R represents hydrogen, alkyl or aryl group, R1 represents hydrogen, aliphatic or aryl group, R11 represents an aliphatic or aryl radical, n is 0, 1 or 2 are produced by reacting an amine R1R11NH with an N-alkyl borazane selected from pyridine borane, N-tri C1-C4 alkyl borazanes, N-di-C1-C4 alkyl borazanes. Alternatively the amine R1R11NH may be reacted with a mixture of alkali metal borohydride and boron trihalide or addition compound thereof, or it may be reacted with a hydrocarbon substituted diborane (RnBH3-n)2 where n=1 or 2.
    • 40. 发明授权
    • Preparation of boron hydrides
    • 硼氢化物的制备
    • US3161469A
    • 1964-12-15
    • US74881358
    • 1958-07-16
    • ETHYL CORP
    • ASHBY EUGENE CPODALL HAROLD E
    • C07F5/00
    • C01B6/00C01B35/026C07F5/006
    • Hydrides of boron, particularly diborane, are prepared by reacting an organic ester of boric acid with aluminium metal and hydrogen at elevated temperatures. Suitable esters are listed, examples being triphenyl borate, trimethyl borate, tri-(t-butyl) borate, tricyclohexyl borate, tribenzyl borate and tri-(p-chlorophenyl) borate. Tertiary amines which form complexes with the boron hydrides may be present as diluents, examples of which are triethylamine, trimethylamine, and triphenylamine; diborane is obtained from these complexes by acidification with hydrochloric acid or boron trichloride at room temperature. Other diluents are specified, including alkyl, cycloalkyl and aromatic hydrocarbons and ethers. The aluminium is preferably in finely divided form and may have been activated by treatment with triethyl-aluminium and hydrogen at 140 DEG C. and 1000 lbs. per sq. inch pressure or by recycling excess aluminium from a previous run. Reaction temperature may be 120-300 DEG C., 140-180 DEG C. being preferred in the absence of a tertiary amine and 200-250 DEG C. when a tertiary amine is present. Hydrogen pressures of 500 to 5000 lbs. per sq. inch may be employed. The reaction may be catalyzed by trialkyl aluminium or boron compounds or by aluminium halides, especially aluminium chloride. The boron hydride or its complex with the tertiary amine is removed from the product by distillation; by-product aluminium alcoholate may be recovered and hydrolysed to form the alcohol which is reacted with boric oxide to produce boron alcoholate for re-use in the process.