t-BuXPhos CAS#: 564483-19-8; ChemWhat Code: 38269

IdentificationPhysical DataSpectra
Route of Synthesis (ROS)Safety and HazardsOther Data

Identification

Product Namet-BuXPhos
IUPAC Nameditert-butyl-[2-[2,4,6-tri(propan-2-yl)phenyl]phenyl]phosphane
Molecular StructureStructure of t-BuXPhos CAS 564483-19-8
CAS Registry Number 564483-19-8
MDL NumberMFCD06411306
Synonyms
tert-butyl XPhos, di-t-butyl(2′,4′,6′-triisopropyl-3,4,5,6-tetramethyl-(1,1′-biphenyl)-2-yl)phosphine, 2-di-tert-butyl(2’,4‘,6‘-triisopropyl-[1,1‘-biphenyl]-2-yl)phosphine, di-tert-butyl(2’,4’,6’-triisopropyl-[1,1‘-biphenyl]-2-yl)phosphine, di-tert-butyl(2’,4’,6’-triisopropyl-[1,1’-biphenyl]-2-yl)phosphine, di-tert-butyl(2’,4’,6’-triisopropyl[1,1‘-biphenyl]-2-yl)phosphine, di-tertbutyl (2’,4’,6’-triisopropyl[1,1‘-biphenyl]-2-yl)phosphine;CAS Number: 564483-19-8
Molecular FormulaC29H45P
Molecular Weight424.64
InChIInChI=1S/C29H45P/c1-19(2)22-17-24(20(3)4)27(25(18-22)21(5)6)23-15-13-14-16-26(23)30(28(7,8)9)29(10,11)12/h13-21H,1-12H3
InChI KeySACNIGZYDTUHKB-UHFFFAOYSA-N
Canonical SMILESCC(C)c1cc(c(c(c1)C(C)C)c2ccccc2P(C(C)(C)C)C(C)(C)C)C(C)C
Patent Information
Patent IDTitlePublication Date
CN105859774A preparation method of compound phosphine benzene apperception (by machine translation)2016
US2013/23678PROCESS FOR PREPARING SULFONAMIDOBENZOFURAN DERIVATIVES2013
US2018/230157CATALYST AND PROCESS FOR THE CO-DIMERIZATION OF ETHYLENE AND PROPYLENE2015
US2011/15401Metal-Catalyzed Carbon-Fluorine Bond Formation2011
EP2062901FLUOROBORON COMPOUND HAVING AROMATIC RING OR SALT THEREOF, AND PROCESS FOR PRODUCTION OF COMPOUND HAVING CYCLIC ETHER-FUSED AROMATIC RING BY USING THE SAME2009

Physical Data

AppearanceWhite crystal powder
Boiling Point493.5±45.0 °C(Predicted)
Melting Point, °C
144~145

Spectra

Description (NMR Spectroscopy)Nucleus (NMR Spectroscopy)Coupling NucleiSolvents (NMR Spectroscopy)Temperature (NMR Spectroscopy), °C Frequency (NMR Spectroscopy), MHz
Chemical shifts1Hbenzene-d6300
Chemical shifts13Cbenzene-d6121
Chemical shifts31P
Chemical shifts, Spectrum1Hchloroform-d125400
Chemical shifts, Spectrum31Pchloroform-d125162
1H1Hbenzene-d6300
Chemical shifts31Pbenzene-d6121
Description (IR Spectroscopy)Solvent (IR Spectroscopy)
Bandssolid

Route of Synthesis (ROS)

Route of Synthesis (ROS) of t-BuXPhos CAS 564483-19-8
Route of Synthesis (ROS) of t-BuXPhos CAS 564483-19-8
ConditionsYield
Stage #1: 2-bromo-1-chlorobenzene; 2,4,6-triisopropyl-1-bromobenzene With magnesium In tetrahydrofuran for 2h; Inert atmosphere; Reflux;
Stage #2: di(tert-butyl)chlorophosphine With tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran at 20℃; for 5.5h; Reagent/catalyst; Reflux; Inert atmosphere;

Experimental Procedure
5 Example 5 Preparation of 2′-di -tert-butylphosphino-2,4,6-triisopropylbiphenyl
1L three bottles,To a solution of 32.5 g of 2,4,6-triisopropylbromobenzene,5.6 g of magnesium turnings and 300 mL of anhydrous THF,20 g of o-chlorobromobenzene was dropwise added,2,4,6-triisopropyl-2-bromobiphenyl Grignard reagent,Refluxed for 2 hours,Down to room temperature,2.4 g of tetrakis (triphenylphosphine) palladium was added,Stirred for 30 minutes,18.8 g of di-tert-butylphosphonium chloride was added dropwise at room temperature,The reaction was refluxed for 5 hours.And the mixture was added dropwise to the reaction solution under ice-water bath200 mL of saturated aqueous ammonium chloride was quenched,Liquid separation,The organic phase is dissolved,Add methanol crystallization,And filtered to obtain 41.7 g of white 2-di-tert-butylphosphine-2,4,6-triisopropylbiphenyl,Yield 94%.
94%
Stage #1: 2,4,6-triisopropyl-1-bromobenzene With magnesium; ethylene dibromide In tetrahydrofuran at 65℃; for 1h;
Stage #2: 2-bromo-1-chlorobenzene In tetrahydrofuran at 65℃; for 1h;
Stage #3: di(tert-butyl)chlorophosphine With copper(l) chloride In tetrahydrofuran at 20℃; for 20h;
32%

Safety and Hazards

Pictogram(s)exclamation-mark
SignalWarning
GHS Hazard StatementsH302 (98.59%): Harmful if swallowed [Warning Acute toxicity, oral]
H312 (98.59%): Harmful in contact with skin [Warning Acute toxicity, dermal]
H332 (98.59%): Harmful if inhaled [Warning Acute toxicity, inhalation]
Information may vary between notifications depending on impurities, additives, and other factors.
Precautionary Statement CodesP261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P312, P322, P330, P363, and P501
(The corresponding statement to each P-code can be found at the GHS Classification page.)

Other Data

TransportationNONH for all modes of transport
Under the room temperature and away from light
HS Code293100
StorageUnder the room temperature and away from light
Market PriceUSD
Druglikeness
Lipinski rules component
Molecular Weight424.65
logP11.292
HBA0
HBD0
Matching Lipinski Rules3
Veber rules component
Polar Surface Area (PSA)13.59
Rotatable Bond (RotB)7
Matching Veber Rules2
Bioactivity
Toxicity/Safety Pharmacology
Quantitative Results
pXParameterValue (qual)Value (quant)UnitEffect
3.82inhibition rate(of cell proliferation)<50%antiproliferative agent
Use Pattern
Palladium-catalyzed Tsuji-Trost substitution and cross-coupling of benzyl fluoride.
Palladium-catalyzed C-N cross-coupling of sulfinamide and aryl halide.
Palladium-catalyzed rapid methoxylation and deuteration of bromo-bromochalcone.

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