标签归档：siliabond

加拿大Silicycle硅胶填料SiliaBond Carbonate (CO3) (R66030B)

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SiliaBond Carbonate (CO3) (R66030B)

SiliaBond Carbonate (CO3) (R66030B)

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Product Number Quantity  
R66030B-10G 10 g

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R66030B-25G 25 g

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R66030B-50G 50 g

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R66030B-100G 100 g

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R66030B-250G 250 g

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R66030B-500G 500 g

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R66030B-1KG 1 kg

SiliaBond Carbonate (CO3) (R66030B)   Loading…  

Details

SiliaBond® Carbonate (Si–CO3) is the silica bound equivalent of tetramethyl ammonium carbonate. It can be used as a general base to quench a reaction, to free base amines in their ammonium salt form and to scavenge acids and acidic phenols, including HOBt, which is widely used in amide coupling reactions.

SiliaBond Carbonate is also very efficient at scavenging boronic acids: 99% removal of phenylboronic acid with one equivalent in DCM at room temperature after 1h. Si-CO3 can free base ephedrine hydrochloride quantitatively (100% yield determined by 1H NMR) using 4 equivalents at room temperature for two hours.

PRODUCT SPECIFICATIONS

MSDS-R66030B

APPLICATION NOTES
Scavenging Using SiliaBond Carbonate

RELATED PUBLICATIONS

  1. Org. Lett., 4 (2002) 1167
  2. Org. Lett., 5 (2003) 4721
  3. J. Comb. Chem., 9 (2007) 677
  4. J. Comb. Chem., 10 (2008) 235
  5. Bioorg. Med. Chem. Lett., 20 (2010), 232

Additional Information

Particle Shape Irregular
Array Carbonate (CO3)
Family / Formats SiliaBond® (Functionalized Silicas)
Particle Size 40 – 63 µm / 230 – 400 mesh
Pore Size 60 Å
Endcapping Endcapped
Storage Condition Keep dry

加拿大Silicycle硅胶填料SiliaBond Carboxylic Acid (WCX) (R70030B)

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SiliaBond Carboxylic Acid (WCX) (R70030B)

SiliaBond Carboxylic Acid (WCX) (R70030B)

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Product Number Quantity  
R70030B-10G 10 g

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R70030B-25G 25 g

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R70030B-50G 50 g

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R70030B-100G 100 g

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R70030B-250G 250 g

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R70030B-500G 500 g

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R70030B-1KG 1 kg

SiliaBond Carboxylic Acid (WCX) (R70030B)   Loading…  

Details

SiliaBond® Carboxylic Acid (Si-CAA) can be used as a scavenger for amines or carbonates, and for the quench of alkoxides and organometallic reagents.

SiliaBond Carboxylic Acid is primarily used as a weak cation exchanger (WCX) in solid phase extraction (SPE) and in HPLC. It is preferred over SiliaBond Tosic Acid (SCX) when performing “Catch and Release” purification technique of compounds bearing a permanent positive charge such as tetraalkylammoniums. Using the SCX in this case could make the release of the compound of interest difficult, not to say irreversible, due to the strong interaction between the two strong ioins. SiliaBond Carboxylic Acid has a pka of ≈4.5.  It can also be used in ion exchange chromatography (IEC) and has a different selectivity than SiliaBond Tosic Acid (SCX).1,2

PRODUCT SPECIFICATIONS

MSDS-R70030B

APPLICATION NOTE
Click here to see the application notes about SiliaBond®

RELATED PUBLICATIONS

  1. J. Chromato. A, 117 (1976) 269
  2. J. Chromato. A, 123 (1976) 109

Additional Information

Particle Shape Irregular
Array Carboxylic Acid (WCX)
Family / Formats SiliaBond® (Functionalized Silicas)
Particle Size 40 – 63 µm / 230 – 400 mesh
Pore Size 60 Å
Endcapping Endcapped
Storage Condition Keep dry & cool

加拿大Silicycle硅胶填料SiliaBond Cyano (CN, 7%C) (R38030B)

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SiliaBond Cyano (CN, 7%C) (R38030B)

SiliaBond Cyano (CN, 7%C) (R38030B)

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Product Number Quantity  
R38030B-10G 10 g

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R38030B-25G 25 g

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R38030B-50G 50 g

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R38030B-100G 100 g

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R38030B-250G 250 g

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R38030B-500G 500 g

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R38030B-1KG 1 kg

SiliaBond Cyano (CN, 7%C) (R38030B)   Loading…  

Details

SiliaBond® Cyano (Si-CN) can be used both in normal and reversed-phase chromatography as its polarity marks the separation between the polar and non-polar phases. SiliaBond Cyano is the least retentive polar sorbent in normal phase chromatography and the least retentive of the non-polar sorbents in reversed-phase chromatography. This sorbent is particularly useful when dealing with extremes in the polarity scale since it reduces the retention time and help improving peak shapes.

SPECIFICATION SHEETS AND MSDS
Product Number Specification Sheet MSDS
R38030B Specification Sheet MSDS
R38130B Specification Sheet MSDS

APPLICATION NOTE
Bulkor/Batch mode : Click here

Additional Information

Particle Shape Irregular
Array Cyano
Family / Formats SiliaBond® (Functionalized Silicas)
Particle Size 40 – 63 µm / 230 – 400 mesh
Pore Size 60 Å
Endcapping Endcapped
Storage Condition Keep dry

加拿大Silicycle硅胶填料SiliaBond Cyanoborohydride (CBH) (R66730B)

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上海金畔生物科技有限公司代理加拿大Silicycle硅胶填料色谱柱层析板金属离子清除剂全线产品，欢迎访问官网了解更多产品信息和订购。
SiliaBond Cyanoborohydride (CBH) (R66730B)

SiliaBond Cyanoborohydride (CBH) (R66730B)

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Product Number Quantity  
R66730B-10G 10 g

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R66730B-25G 25 g

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R66730B-50G 50 g

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R66730B-100G 100 g

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R66730B-250G 250 g

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R66730B-500G 500 g

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R66730B-1KG 1 kg

SiliaBond Cyanoborohydride (CBH) (R66730B)   Loading…  

Details

SiliaBond® Cyanoborohydride (Si–CBH) is the silica bound equivalent of sodium cyanoborohydride. Bound cyanoborohydride is very useful in reductive amination and in the reduction of imines and aldehydes. Cyanide contamination of the product is a concern when using the solution phase equivalent. This problem is minimized with the use of silica bound materials since the toxic cyanide residue remains on the silica. Additionally, it may be used to reduce α, β-unsaturated carbonyl to the corresponding unsaturated alcohol.

To see if any cyanide ion was leaching from the silica, 1 g of SiliaBond Cyanoborohydride has been washed in 10 mL of methanol for 24 hours. Cyanide strips indicated less than 3 ppm in each test performed.

PRODUCT SPECIFICATIONS

MSDS-R66730B

APPLICATION NOTE
Reductive animation : Click here

POSTER
Click here to see all the documentation about SiliaBond®

RELATED PUBLICATION

  1. Tet. Lett., 50 (2009) 6658
  2. Tet. Lett., 50 (2009) 2552

Additional Information

Particle Shape Irregular
Array Cyanoborohydride (CBH)
Family / Formats SiliaBond® (Functionalized Silicas)
Particle Size 40 – 63 µm / 230 – 400 mesh
Pore Size 60 Å
Storage Condition Keep dry, cool (<8°C) and under Argon

加拿大Silicycle硅胶填料SiliaBond Dimethylamine (DMA) (R45030B)

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上海金畔生物科技有限公司代理加拿大Silicycle硅胶填料色谱柱层析板金属离子清除剂全线产品，欢迎访问官网了解更多产品信息和订购。
SiliaBond Dimethylamine (DMA) (R45030B)

SiliaBond Dimethylamine (DMA) (R45030B)

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Product Number Quantity  
R45030B-10G 10 g

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R45030B-25G 25 g

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R45030B-50G 50 g

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R45030B-100G 100 g

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R45030B-250G 250 g

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R45030B-500G 500 g

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R45030B-1KG 1 kg

SiliaBond Dimethylamine (DMA) (R45030B)   Loading…  

Details

SiliaBond® Dimethylamine is a silica bound tertiary amine base that can be used in most applications requiring a tertiary amine, particularly as a HCl sponge. Silica bound ammonium salt by-products are easily separated by filtration. This dimethylamine immobilized on silica gel can be used as a base catalyst in Michael1or Knoevenagel2 reactions. It can also be used as a catalyst for alkane oxidation.3 Unlike polystyrene based resins, the amine is not a benzyl amine and therefore is not susceptible to cleavage by electrophiles.

PRODUCT SPECIFICATIONS

MSDS-R45030B

RELATED PUBLICATIONS

  1. Synlett (1998) 625
  2. J. Chem. Soc. Perkin Trans. 1, (1989) 105
  3. J. Org. Chem., 56 (1991) 1981


Additional Information

Particle Shape Irregular
Array Diethylamine (DMA)
Family / Formats SiliaBond® (Functionalized Silicas)
Particle Size 40 – 63 µm / 230 – 400 mesh
Pore Size 60 Å
Endcapping Endcapped
Storage Condition Keep dry and cool (<8°C)