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    • 34. 发明授权
    • Method for making an optically active diphosphine ligand
    • 制备光学活性二膦配体的方法
    • US5922918A
    • 1999-07-13
    • US957020
    • 1997-10-24
    • Xiaoyaong ZhangNoboru Sayo
    • Xiaoyaong ZhangNoboru Sayo
    • C07F9/32C07F9/50C07F9/53
    • C07F9/509C07F9/5325C07B2200/07
    • The present invention provides a method for making compound (1) by reacting compound (2) with phosphine oxide (3) in the presence of a transition metal/phosphine complex and optionally reducing the reaction product: ##STR1## where n represents 0 or 1; the double line having a continuous line and a dotted line represents a double bond or a single bond such that the ring having the double line forms a naphthalene ring or an octahydronaphthalene ring with an adjacent benzene ring; Tf represents a trifluoromethanesulfonyl group; and Ar represents a phenyl group, a substituted phenyl group or a naphthyl group. The present invention provides an economical way to produce compound (1) as a ligand of a complex useful as a catalyst for a variety of asymmetric synthesis reactions.
    • 本发明提供了在过渡金属/膦配合物存在下使化合物(2)与氧化膦(3)反应制备化合物(1)的方法,任选地还原反应产物:其中n表示0或1; 具有连续线和虚线的双线表示双键或单键,使得具有双线的环形成具有相邻苯环的萘环或八氢萘环; Tf表示三氟甲磺酰基; Ar表示苯基,取代苯基或萘基。 本发明提供了一种生产化合物(1)作为可用作各种不对称合成反应的催化剂的络合物的配体的经济方法。
    • 38. 发明授权
    • Process for preparing ruthenium-phosphine complex
    • 制备钌膦配合物的方法
    • US5919962A
    • 1999-07-06
    • US933973
    • 1997-09-19
    • Noboru SayoKazushi MashimaKyoko TamaoTetsuo Ota
    • Noboru SayoKazushi MashimaKyoko TamaoTetsuo Ota
    • B01J31/24C07B53/00C07B61/00C07F9/50C07F15/00C07F9/02
    • C07F15/0053
    • Disclosed is a ruthenium-phosphine complex represented by formula (I):�{RuX(L)}.sub.2 (.mu.-X).sub.3 !.sup.- �R.sub.2 NH.sub.2 !.sup.+(I)wherein R is hydrogen, an alkyl group having 1 to 5 carbon atoms, a cycloalkyl group, a substituted or unsubstituted phenyl group or a substituted or unsubstituted benzyl group; X is halogen; and L is an optically active or inactive tertiary phosphine. A process for preparing the complex (I) is also disclosed, which comprises (A) reacting a ruthenium complex represented by formula: �RuX(arene)(L)!X (wherein arene is a substituted or unsubstituted phenyl group) and an ammonium salt represented by formula (III): R.sub.2 NH.HX, or (B) reacting a ruthenium complex represented by formula: �RuX.sub.2 (arene)!.sub.2, a tertiary phosphine represented by L, and an ammonium salt (III). The complex (I) useful as a catalyst for general syntheses or asymmetric syntheses can be obtained easily in good yield.
    • 公开了由式(I)表示的钌膦配合物:[{RuX(L)} 2(mu -X)3] - [R 2 NH 2] +(I)其中R是氢,具有1至5个碳原子的烷基 原子,环烷基,取代或未取代的苯基或取代或未取代的苄基; X是卤素; L是光学活性或无活性的叔膦。 还公开了制备络合物(I)的方法,其包括(A)使由式[RuX(芳烃)(L)] X(其中芳烃为取代或未取代的苯基)和铵 由式(III)表示的盐:R2NH.HX,或(B)使由式[RuX2(芳烃)] 2表示的钌络合物,由L表示的叔膦和铵盐(III)反应。 可以容易地以良好的收率获得用作一般合成或不对称合成的催化剂的络合物(I)。
    • 40. 发明授权
    • Process for producing optically active dihydropyran derivative
    • 光学活性二氢吡喃衍生物的制备方法
    • US5155240A
    • 1992-10-13
    • US668656
    • 1991-03-13
    • Koichi MikamiMasahiro TeradaTakeshi NakaiNoboru Sayo
    • Koichi MikamiMasahiro TeradaTakeshi NakaiNoboru Sayo
    • C07D309/28
    • C07D309/28
    • A process for producing an optically active dihydropyran derivative represented by formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 each represents a hydrogen atom, a lower alkyl group, a tri-lower alkylsilylmethyl group, a lower alkoxycarbonylamino group, or an --OR.sup.5 group, wherein R.sup.5 represents a lower alkyl group, a lower acyl group, a lower alkoxycarbonyl group, a di-lower alkylcarbamoyl group, or a tri-lower alkylsilyl group, or R.sup.1 and R.sup.2 are taken together to form a 5- to 7-membered cyclic hydrocarbon group or to form a condensed heterocyclic group with an oxygen atom, or R.sup.2 and R.sup.3 are taken together to form a 5- to 7-membered cyclic hydrocarbon group or to form a condensed heterocyclic group with an oxygen atom, provided that all of R.sup.1, R.sup.2, R.sup.3, and R.sup.4 do not represent hydrogen atoms at the same time; and R.sup.6 represents a lower alkyl group, which comprises reacting a diene compound represented by formula (2): ##STR2## wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 have the same meanings as defined above, with a glyoxylic acid ester represented by formula (3): ##STR3## wherein R.sup.6 has the same meaning as defined above, in the presence of a binaphthol-titanium complex represented by formula (4): ##STR4## wherein X represents a chlorine atom or a bromine atom, is disclosed.
    • 一种制备式(1)表示的光学活性二氢吡喃衍生物的方法:其中R1,R2,R3和R4各自表示氢原子,低级烷基,三低级烷基甲硅烷基甲基, 低级烷氧基羰基氨基或-OR5基团,其中R5表示低级烷基,低级酰基,低级烷氧基羰基,二低级烷基氨基甲酰基或三低级烷基甲硅烷基,或者R1和R2组合在一起 形成5至7元环状烃基或与氧原子形成稠合杂环基,或将R 2和R 3一起形成5-至7-元环状烃基或形成稠合杂环基 具有氧原子,条件是所有R1,R2,R3和R4不同时表示氢原子; 并且R 6表示低级烷基,其包括使式(2)表示的二烯化合物:其中R 1,R 2,R 3和R 4具有与上述相同的含义,与表示的二羟乙酸酯反应 在式(4)表示的联萘酚钛化合物存在下,式(3)表示:其中R 6具有与上述相同的含义,其中X表示氯原子 或溴原子。