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Aalborg Digital Mass Flowmeters - Mass Measurement

These easy to use instruments can be used to measure gas flow rates for common GC gases. The 1/4” NPT fittings on both the inlet and outlet allows installation in-line to provide continuous measurements. These units can also be used as hand-held units by attaching a short length of flexible tubing t...

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Corning® HYPERFlask® Cell Culture Vessel with CellBIND® - Corning Plastic Cell Culture Flasks

The novel Corning HYPERFlask offers 1720 cm2 growth area in the footprint of a traditional 175 cm2 flask. This high yield, high performance flask utilizes a multilayered gas permeable growing surface for efficient gas exchange.10 interconnected polystyrene growth surfacesCorning CellBIND surface tre...

Negishi Kit

Product No. 802344 Compound Catalog No. Equivalents MW Density Amount mmol Kit Components PdCl2(Amphos)2 678740 0.01 708.07 3.6 mg 0.005 Zn dust 209988 3.0 65.39 100 mg 1.50 TMEDA T22500 2.0 116.20 0.775 0.15 mL 1.00 TPGS-750-M 733857 1.002 1.5 mL User Supplied Aryl bromide [ArBr] 1.0 0.50 Alkyl bro...

Pressure-Temperature Nomograph Interactive Tool

Slider A is currently locked as the pivot. Slider B is currently locked as the pivot. Slider C is currently locked as the pivot. A C K F Ra Re Observed Boiling Point at Pressure "P" (mmHg) B C K F Ra Re Boiling Point Corrected at 1 atm (760 mmHg) C mmHG kPa bar atm psi Pressure "P" (mmHg) 1 atm = 76...

Typical Procedures for Polymerizing via ATRP

The following two procedures describe two ATRP polymerization reactions as performed by Prof. Dave Hadddleton′s research group at the University of Warwick. The polymerization is carried out under oxygen free conditions. First the transition metal salt is deoxygenated and then the solution, followed...

Palladium-Catalyzed Hydroxylation of Aryl and Heteroaryl Halides Enabled by the Use of a Palladacycle Precatalyst

A method for the hydroxylation of aryl and heteroaryl halides, promoted by a catalyst based on a biarylphosphine ligand tBuBrettPhos (L5) and its corresponding palladium precatalyst (1), is described. The reactions allow the cross-coupling of both potassium and cesium hydroxides with (hetero)aryl ha...

A Bulky Biaryl Phosphine Ligand Allows for Palladium-Catalyzed Amidation of Five-Membered Heterocycles as Electrophiles

The palladium-catalyzed cascade reaction of 2-chloroaryl sulfonates with arylamine and amide nucleophiles provides direct access to�N-arylbenzimidazoles. This strategy selectively produces the heterocycles based on chemoselective oxidative addition. 2-Chloroaryl triflates (Tf) produce one regioisome...

Mild and general palladium-catalyzed synthesis of methyl aryl ethers enabled by the use of a palladacycle precatalyst

A general method for the Pd-catalyzed coupling of methanol with (hetero)aryl halides is described. The reactions proceed under mild conditions with a wide range of aryl and heteroaryl halides to give methyl aryl ethers in high yield. An oven-dried 20 mL resealable screw-cap test tube?(A) equipped wi...

Pressure Conversion

Use this pressure conversion table chart to convert pressure units. To use the chart, find the unit of pressure you want to convert in the left hand column and multiply it by the value in the corresponding pressure unit column. The handy pressure converter table is used for converting pressure units...

Protocol KitAlysis™ High-Throughput Miyaura Borylation Reaction Screening Kit

2 bases (KOAc, DIEA) 6 degassed solvents (toluene, DMA, THF, n-butanol, MeOH, MeCN) 6 pre-weighed catalysts (x4) Materials Required - Set up: • 1 mylar bag from the KitAlysis™ High-Throughput Miyaura Borylation Reaction Screening Kit and you will use the following components - 6 x 4 pre-weighed cata...

A Mild and Efficient Palladium-Catalyzed Cyanation of Aryl Chlorides with K4[Fe(CN)6]

The cross-coupling reactions of allylboronic acid pinacol ester derivatives with aryl and heteroaryl halides occurred with high selectivity (>97%) at the ?-carbon of the allylboron reagent in the presence of Pd-PEPPSI-IPent precatalyst and 5 M KOH in refluxing THF. In the case of trisubstituted ally...

BIOshell™ A160 Peptide CN, 5 μm HPLC Columns - BIOshell™ HPLC Columns

BIOshell A160 Peptide CN columns packed with 5 m particles, 160 Å pores, provide similar resolution in shorter time than 3 m porous columns, and higher resolution than 5 m porous columns.BIOshell A160 Peptide CN columns can be operated long term at pressures up to 600 bar (60 MPa or 8500 psi), tempe...

Suzuki Kit

Product No. 802271 Compound Catalog No. Equivalents MW Density Amount mmol Kit Components Pd(dtbpf)Cl2 701602 0.026 651.75 9 mg 0.013 Triethylamine T0886 3.3 101.19 0.726 0.23 mL 1.65 TPGS-750-M 733857 1.002 1.0 mL User Supplied Aryl bromide [ArBr] 1.0 0.5 Arylboronic acid [ArB(OH)2] 1.0-2.0 0.5-1.0...

Pressure-Temperature Nomograph

Slider A is currently locked as the pivot. Slider B is currently locked as the pivot. Slider C is currently locked as the pivot. A C K F Ra Re Observed Boiling Point at Pressure "P" (mmHg) B C K F Ra Re Boiling Point Corrected at 1 atm (760 mmHg) C mmHG kPa bar atm psi Pressure "P" (mmHg) 1 atm = 76...

Medium (5,6,7) Ring-Closing Metathesis Procedure

6 pre-weighed catalysts (x4) 4 degassed solvents: Chlorobenzene (ClPh), Toluene (PhMe), Isopropyl Acetate (i-PrOAc), and Methyl-THF (Me-THF) 1 (optional) acid additive (degassed neat TFA) • 1 mylar (foil) bag from the KitAlysis Grubbs Metathesis Reaction Screening Kit and you will use the following ...

Buchwald Hartwig Amination Kit

Product No. 802298 Compound Catalog No. Equivalents MW Density Amount mmol Kit Components [(π-allyl)PdCl]2 222380 0.016 365.89 3.2 mg 0.008 cBRIDP 693383 0.07 352.49 12.4 mg 0.035 Potassium t-butoxide 156671 1.64 112.21 92 mg 0.82 TPGS-750-M 733857 1.002 1.0 mL User Supplied Aryl bromide [ArBr] 1.0 ...

Highly Selective Palladium-Catalyzed Cross-Coupling of Secondary Alkylzinc Reagents with Heteroaryl Halides | Materials & Procedure

The highly selective palladium-catalyzed Negishi coupling of secondary alkylzinc reagents with heteroaryl halides is described. The development of atseries of biarylphosphine ligands has led to the identification of an improved catalyst for the coupling of electron-deficient heterocyclic substrates....

Sonogashira Kit

Product No. 802301 Compound Catalog No. Equivalents MW Density Amount mmol Kit Components Pd(CH3CN)2Cl2 225657 0.014 259.43 2 mg 0.007 XPhos 638064 0.038 476.72 9.3 mg 0.019 Triethylamine T0886 2.28 101.19 0.726 0.16 mL 1.14 TPGS-750-M 733857 1.002 1.0 mL User Supplied Aryl bromide [ArBr] 1.0 0.50 A...

BIOshell™ A400 Protein C4, 3.4 μm HPLC Columns - BIOshell™ HPLC Columns

New BIOshell A400 Protein C4 columns contain 3.4 m particles with 400 Å pores, which are derivatized with dimethylbutyl silane and exhaustively endcapped for optimum protein recovery.At the same back pressure, analysis times on 3.4 m BIOshell A400 Protein C4 columns are up to 3 times shorter than on...

Trifluoromethylation Kit

Product No. 802379 Compound Catalog No. Equivalents MW Density Amount mmol Kit Components Sodium triflinate 743232 3.0 156.06 234 mg 1.50 TBHP solution 458139 5.0 90.12 0.93 0.35 mL 2.50 TPGS-750-M 733857 1.002 1.0 mL User Supplied Heteroaryl [HetArH] 1.0 0.5 Please consult the Safety Data Sheet for...

An Improved Protocol for the Pd-Catalyzed r-Arylation of Aldehydes with Aryl Halides

A series of palladacyclic precatalysts that incorporate electron-rich di-tert-butylphosphino biaryl ligands is reported. These precatalysts are easily prepared, and their use provides a general means of employing bulky ligands in palladium-catalyzed cross-coupling reactions. The application of these...

Palladium-Catalyzed Amination of Unprotected Five-Membered Heterocyclic Bromides

An efficient method for the palladium-catalyzed amination of unprotected bromoimidazoles and bromopyrazoles is presented. The transformation is facilitated by the use of our newly developed Pd precatalyst based on the bulky biarylphosphine ligand tBuBrettPhos (L4). The mild reaction conditions emplo...

Mild and General Conditions for Negishi Cross-Coupling Enabled by the Use of Palladacycle Precatalysts

A wide range of biaryls were synthesized by palladium-catalyzed Negishi cross-couplings at ambient temperature or with low catalyst loading. This protocol features the use of a recently reported aminobiphenyl palladacycle precatalyst to generate the catalytically active XPhos-�Pd(0) species. Signifi...

Protocol -KitAlysis High-Throughput Copper C-N Cross-Coupling Reaction Screening Kit

Related Links • KitAlysis™ High-Throughput Copper C-N Cross-Coupling Reaction Screening Kit • Copper C-N Cross-Coupling Reaction Scale-Up Guide • KitAlysis™ High-Throughput Screening Kits • Download Excel Reaction Calculator (right-click and save the file) 1 base (K3PO4, pre-weighed solid) 4 solvent...

Application Note: Synthesis of Silver Nanowires

• • Download PDF • Uniform Ag nanowires can be readily synthesized using a modified polyol process. A typical synthesis involves ethylene glycol (EG) (Prod. No. 324558) as both the solvent and the reducing agent, with AgNO3 (Prod. No. 204390) and poly(vinvlpyrrolidone) (PVP, MW=55000) (Prod. No. 856...

Catalytic Direct Cross-Coupling of Organolithium Compounds with Aryl Chlorides

Complex, hindered biaryls have been prepared at temperatures ranging from 0�C to room temperature, or with gentle heating. The Pd-PEPPSI-IPent catalyst nicely couples starting materials containing acidic moieties and routinely prepares biaryl derivatives where one or both rings comprising the biaryl...

One Solvent (Dioxane), two bases (NaOtBu, Cs2CO3) Step-by-Step Guide for Buchwald-Hartwig Amination Reaction Screening Kit

2 bases (NaOt-Bu, 2 M in THF and Cs2CO3) 1 solvent (1,4 Dioxane) 12 pre-weighed catalysts Materials required - set up: • 1 mylar bag from the KitAlysis Buchwald-Hartwig Amination Reaction Screening Kit and you will use the following components - 12 x 2 pre-weighed catalysts in glass vials loaded wit...

Pd-Catalyzed Nucleophilic Fluorination of Aryl Bromides

The first palladium-catalyzed amidation of five-membered heterocyclic bromides with multiple heteroatoms was achieved using the Pd/1�catalyst system. N-Arylated imidazoles, pyrazoles, thiazoles, pyrroles, and thiophenes were synthesized in moderate to excellent yield. Experimental results and DFT ca...

Heck Kit

Product No. 802328 Compound Catalog No. Equivalents MW Density Amount mmol Kit Components Pd[P(t-Bu)3]2 676578 0.03 511.05 7.7 mg 0.015 Triethylamine T0886 3.3 101.19 0.726 0.23 mL 1.65 TPGS-750-M 763918 1.002 1.0 mL User Supplied Aryl iodide [ArI] 1.0 0.50 Acrylate/Styrene 2.0 1.0 Please consult th...

Olefin Metathesis Kit

Product No. 802360 Compound Catalog No. Equivalents MW Density Amount mmol Kit Components Grubbs-2 catalyst 569747 0.022 848.97 10 mg 0.011 TPGS-750-M 733857 1.002 1.0 mL User Supplied Alkene [RCHCH2] 1.0 0.5 Acrylate/vinyl ketone 2.0-3.0 1.0-1.5 Please consult the Safety Data Sheet for information ...