CAS: 122-08-7; Benzyltrimethylammonium Methoxide

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CAS号2082-81-7 1,4-丁二醇二甲基丙烯酸酯 | CAS号56-93-9 苄基三甲基氯化铵

专利信息

专利号:US-7115540-B2
优先权日:2002-02-13
标题 :Synthesis of aliphatic 1,3-diols utilizing reduced ligand concentration and water extraction
发明人：POWELL JOSEPH BROUN; WEIDER PAUL RICHARD; KNIFTON JOHN FREDERICK; ALLEN KEVIN DALE; SLAUGH LYNN HENRY; ARHANCET JUAN PEDRO
权利人:SHELL OIL CO
摘要:This invention is a process for synthesizing aliphatic 1,3-diols in one step by hydroformylation and hydrogenation of oxirane, carbon monoxide, and hydrogen employing a catalyst comprising a cobalt carbonyl compound and a cocatalyst metal compound ligated with a ligand in a ligand to cocatalyst metal atom molar ratio in the range of 0.2:1.0 to 0.6:1.0, optionally in the presence of a promoter, where recovery of product is preferably accomplished via water extraction of a diol rich phase from the bulk reaction mixture. The process modifications can, particularly in combination, be beneficial with respect to product recovery, catalyst recycle, and overall economics of a one-step process for producing aliphatic 1,3-diols.

专利号:US-2003166977-A1
优先权日:2002-02-13
标题 :Synthesis of aliphatic 1, 3-diols utilizing reduced ligand concentration and water extraction

专利号:EP-0508699-B1
优先权日:1991-04-04
标 题 :9-Deoxo-8a-aza-8a-homoerythromycin a derivatives modified at the 4'- and 8a-positions
发明人：HECK JAMES V; LEANZA WILLIAM J; RATCLIFFE RONALD W; SALZMANN THOMAS N; WILKENING ROBERT R; SZYMONIFKA MICHAEL J; SHANKARAN KOTHANDARAMAN
权利人:MERCK & CO INC
摘要:Compounds of the formula: where R is hydrogen, hydroxyl, alkyl or acyl, R min and R sec together are oxo, hydroxyimino or alkoxyimino, and R min and R sec independently are hydrogen, hydroxyl, acyloxy, or amino substituted by any of hydrogen, alkylcarbonyl, arylcarbonyl, aralkylcarbonyl, alkoxycarbonyl, aralkoxycarbonyl, alkylsulfonyl or arylsulfonyl, and n is 0 or 1, and the pharmaceutically acceptable salts thereof. The compounds are macrolide antibiotics and are also useful as intermediates to the synthesis of other macrolide antibiotics. Pharmaceutical compositions and methods of their use are also provided for.

专利号:US-5189159-A
优先权日:1992-04-02
标 题:8a-AZA-8a-homoerythromycin cyclic iminoethers
发明人：WILKENING ROBERT R
权利人:MERCK & CO INC
摘要:Cyclic iminoethers of the general structural formula wherein one of the R groups is hydrogen and the other R group represents a bond between the oxygen atom at C-6 or C-12 and the imino carbon at C-9; ##STR1## These compounds are macrolides useful as antibiotics and as intermediates for the synthesis of other macrolide antibiotics.

专利号:US-5202434-A
优先权日:1991-04-05
标题:8a-aza-8a-homoerythromycin lactams
发明人：WILKENING ROBERT R
权利人:MERCK & CO INC
摘要:Lactams of the general structural formula: wherein R is hydrogen or C1-10 alkyl. These compounds are macrolides useful as antibiotics and as intermediates for the synthesis of other macrolide antibiotics.

专利号:EP-1384717-A2
优先权日:1991-11-18
标题:Tetrazolylphenylboronic acid intermediates for the synthesis of A II receptor antagonists