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CAS No 172418-32-5 , trans-Di(µ

  • Name: trans-Di(µ
  • Synonyms: (E)-Diacetatobis-{2-[bis-(o-tolyl)-phosphino]-benzyl}-dipalladium; trans-Di-mu-acetatobis[2-(di-o-tolylphosphino)benzyl]dipalladium(II);DiacetatobisodiotolylphosphinobenzyldipalladiumII;-acetato)bis[o-(di-o-tolylphosphino)benzyl]dipalladium (II); trans-Di(-acS46-1989; Herrmanns Catalyst;trans-Di(µ
  • CAS Registry Number:
  • Melting Point: 230°C
  • Flash Point: °C
  • Boiling Point: °Cat760mmHg
  • Density: g/cm3
  • Safety Statements: R36/37/38:Irritatingtoeyes,respiratorysystemandskin.;
  • Flash Point: °C
  • Molecular Weight: 757.4
  • InChI: InChI=1/2C21H20P.2C2H4O2.2Pd/c2*1-16-10-4-7-13-19(16)22(20-14-8-5-11-17(20)2)21-15-9-6-12-18(21)3;2*1-2(3)4;;/h2*4-15H,1H2,2-3H3;2*2H,1H3;;/q;;2*-2;2*+1/p+2/rC46H50O4P2Pd2/c1-33-19-7-13-25-41(33)51(42-26-14-8-20-34(42)2)45-29-17-11-23-39(45)31-53(51)47-37(5)49-54(50-38(6)48-53)32-40-24-12-18-30-46(40)52(54,43-27-15-9-21-35(43)3)44-28-16-10-22-36(44)4/h7-30,37-38,51-52H,31-32H2,1-6H3
  • Risk Statements: S26-36/37/39:Incaseofcontactwitheyes,rinseimmediatelywithplentyofwaterandseekmedicaladvice.;S36:Wearsuitableprotectiveclothing.;
  • Molecular Formula: C46H46O4P2Pd2
  • Molecular Structure:CAS No:172418-32-5 trans-Di(µ

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References of trans-Di(µ
Title: Herrmann-Beller Catalyst
CAS Registry Number: 172418-32-5
CAS Name: Bis[m-(acetato-kO:kO￠)]bis[[2-[bis(2-methylphenyl)phosphino-kP]phenyl]methyl-kC]dipalladium stereoisomer
Synonyms: trans-di(m-acetato)bis[o-(di-o-tolylphosphino)benzyl]dipalladium(II); Herrmann's palladacycle
Molecular Formula: C46H46O4P2Pd2
Molecular Weight: 937.64
Percent Composition: C 58.92%, H 4.94%, O 6.83%, P 6.61%, Pd 22.70%
Literature References: Highly efficient palladacycle catalyst; exists in a monomer/dimer equilibrium in soln. Prepn: M. Beller et al., DE 4421753 (1995 to Hoechst); eidem, US 5831107 (1998 to Aventis); and catalytic applications: W. A. Herrmann et al., Angew. Chem. Int. Ed. 34, 1844 (1995); eidem, Chem. Eur. J. 3, 1357 (1997); W. A. Herrmann et al., J. Chem. Educ. 77, 92 (2000). EXAFS characterization: S. G. Fiddy et al., Chem. Commun. 2003, 2682. Catalysis mechanism in the Heck reaction: V. P. W. B?hm, W. A. Herrmann, Chem. Eur. J. 7, 4191 (2001). Review of catalytic applications: A. Speicher et al., J. Prakt. Chem. 341, 605-608 (1999).
Properties: Yellow crystals from toluene/hexane or CH2Cl2/hexane, mp 229-231° (dec). Air stable; thermally stable; becomes catalytically active at ~80°.
Melting point: mp 229-231° (dec)
Use: Homogeneous catalyst in carbon-carbon bond forming reactions such as the Heck and Suzuki reactions.