CAS: 18284-36-1; Hydridotetrakis(Triphenylphosphine)Rhodium(I)

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CAS号1039067-04-3 RhH(PPh3)2(1,2-... | CAS号603-35-0 三苯基膦 | CAS号14694-95-2 三苯基膦氯化铑 | CAS号1002-78-4 Silane, dihexyl | CAS号17185-29-4 三(三苯基膦)羰基氢化铑(I) | CAS号300-57-2 烯丙基苯 | CAS号873-66-5 反-β-甲基苯乙烯 | CAS号106-98-9 正丁烯 | CAS号107-01-7 2-丁烯 | CAS号14694-95-2 三苯基膦氯化铑

专利信息

专利号:US-9758499-B2
优先权日:2014-06-12
标 题:Stereo controlled synthesis of (E,Z)-dienals via tandem Rh(I) catalyzed propargyl claisen rearrangement
发明人：VIDHANI DINESH V; KRAFFT MARIE E; ALABUGIN IGOR
权利人:UNIV FLORIDA STATE RES FOUND
摘要:A novel Rh(I)-catalyzed approach to synthesizing functionalized (E,Z) dienal compounds has been developed via tandem transformation where a stereoselective hydrogen transfer follows a propargyl Claisen rearrangement. Z-Stereochemistry of the first double bond suggests the involvement of a six-membered cyclic intermediate whereas the E-stereochemistry of the second double bond stems from the subsequent protodemetallation step giving an (E,Z)-dienal. The reaction may be represented by the following sequence.

专利号:US-H918-H
优先权日:1988-10-05
标题 :Decarbonylation and dehydrogenation of carbohydrates
发明人：ANDREWS MARK A; KLAEREN STEPHEN A
权利人:US ENERGY
摘要:Carbohydrates, especially aldose or ketose sugars, including those whose carbonyl group is masked by hemi-acetal or hemi-ketal formation, are decarbonylated by heating the feed carbohydrate together with a transition metal complex in a suitable solvent. Also, primary alcohols, including sugar alditols are simultaneously dehydrogenated and decarbonylated by heating a mixture of rhodium and ruthenium complexes and the alcohol and optionally a hydrogen acceptor in an acceptable solvent. Such defarbonylation and/or dehydrogenation of sugars provides a convenient procedure for the synthesis of certain carbohydrates and may provide a means for the conversion of biomass into useful products.

专利号:US-9914695-B2
优先权日:2015-07-10
标题:Two-step process for preparing 3-substituted phenylalkylamines
发明人：Teramura Doug; LIAO SUBO
权利人:MALLINCKRODT LLC
摘要:Processes for preparing 3-substituted phenylalkylamines comprising reacting a phenyl boronic compound with an α-β unsaturated carbonyl-containing compound via an asymmetric 1,4-addition reaction, followed by reductive alkylation. The processes may be useful in the synthesis of tapentadol.

专利号:US-10011664-B2
优先权日:2011-02-04
标 题:Functionalized nitrile rubbers and the production thereof
发明人：OBRECHT WERNER; JESCHKO JULIA MARIA; NUYKEN OSKAR; SCHNEIDER MARTIN
权利人:OBRECHT WERNER; JESCHKO JULIA MARIA; NUYKEN OSKAR; SCHNEIDER MARTIN; ARLANXEO DEUTSCHLAND GMBH
摘要:Provided are new functionalized nitrile rubbers, which may optionally also be in partially or wholly hydrogenated form, and also a process for preparing them by metathesis of nitrile rubbers in the presence of a metathesis catalyst and at least one functionalized allyl compound. The new functionalized nitrile rubbers are suitable for producing vulcanizable mixtures and allow the production of vulcanizates having very stable networks. Also made possible, in particular, is the synthesis of block copolymers.

专利号:US-9573871-B2
优先权日:2014-06-12
标题 :Stereo controlled synthesis of (E,Z)-dienals via tandem Rh(I) catalyzed propargyl claisen rearrangement

专利号:US-2017129865-A1
优先权日:2014-06-12
标题 :Stereo controlled synthesis of (e,z)-dienals via tandem rh(i) catalyzed propargyl claisen rearrangement