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US5141676A Expired / Lapsed US ⏱️ 0.0 years remaining

Soluble magnesium hydrides, method of preparing them, and use thereof

Assignee: Studiengesellschaft Kohle gGmbH
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Filing: 1991-04-17
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Granted: 1992-08-25
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Expires: 2011-04-17
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Abstract

Abstract Organic-solvent soluble magnesium hydrides of the formulas (MgH.sub.2).sub.n. MgQ.sub.2 (II) (MgH.sub.2).sub.n. RMgX (III) ##STR1## are prepared by catalytically hydrogenating finely powdered magnesium, optionally in the presence of a magnesium halide, in an organic solvent in the presence of their MgH 2 -free counterparts in which Q is an alkyl, alkenyl, alkoxy, dialkylamino, aralkyl, aryl or diarylamino group, each with up to 18 carbon atoms, R is an alkenyl, aralkyl or aryl group, each with up to 18 carbon atoms, X is chlorine, bromine, or iodine, --E D→ is a chelating ligand, E is --CH 2 , --N(R)-- or --O--, is an alkylene radical of the formula --(CH 2 ) p , D is a dialkylamino, diarylamino or alkoxy group, each with up to 19 carbon atoms, M is aluminum or boron, m is 1, 2, or 3, and 1<n≦50.

Inventors

  • 👤 Borislav Bogdanovic
  • 👤 Manfred Schwickardi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 02:10
CPC Classifications
C; C07; C07D; C07D453/00; C07D453/02; C01; C01B; C01B6/00; C01B6/04; C07F; C07F3/00; C07F3/003; C07F3/02; C07F5/00; C07F5/02; C07F5/027; C07F5/06; C07F5/061; C07F5/062

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 119 words
A magnesium hydride which is soluble in an organic solvent and has a general formula selected from the group consisting of (MgH.sub.2).sub.n ·MgQ.sub.2 (II) (MgH.sub.2).sub.n ·RMgX (III) ##STR15## in which Q is an alkyl, alkenyl, alkoxy, dialkylamino, aralkyl, aryl or diarylamino group each with up to 18 carbons, R is an alkenyl, aralkyl or aryl group, each with up to 18 carbon atoms, X is chlorine, bromine, or iodine, ##STR16## is a chelating ligand, E is --CH 2 --, --N(R)--or --O--, D is a dialkylamino, diarylamino or alkoxy group, each with up to 18 carbon atoms, M is aluminum or boron, m is 1, 2, or 3, p is a whole number from 1-6, and ≦ n ≦ 50.
Claim 2
Dependent Claim 119 words
A magnesium hydride which is soluble in an organic solvent and has a general formula selected from the group consisting of (MgH.sub.2).sub.n ·MgQ.sub.2 (II) (MgH.sub.2).sub.n ·RMgX (III) ##STR15## in which Q is an alkyl, alkenyl, alkoxy, dialkylamino, aralkyl, aryl or diarylamino group each with up to 18 carbons, R is an alkenyl, aralkyl or aryl group, each with up to 18 carbon atoms, X is chlorine, bromine, or iodine, ##STR16## is a chelating ligand, E is --CH 2 --, --N(R)--or --O--, D is a dialkylamino, diarylamino or alkoxy group, each with up to 18 carbon atoms, M is aluminum or boron, m is 1, 2, or 3, p is a whole number from 1-6, and ≦ n ≦ 50.
Claim 3
Dependent Claim 15 words
A magnesium hydride according to claim 9 of the formula (MgH.sub.2).sub.n.MgQ.sub.2 (II) (MgH.sub.2).sub.n.RMgX (III) ##STR17##
Claim 4
Dependent Claim 29 words
A magnesium hydride according to claim 1 of the formula (MgH.sub.2).sub.n.MgQ.sub.2 in which Q is an alkyl, alkenyl, alkoxy, aralkyl or aryl group each with up to 18 carbons.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-08-25 1996-02-24 1996-08-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-08-25 2000-02-24 2000-08-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-08-25 2004-02-24 2004-08-25 $7700.00 Window Closed / Lapsed

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