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Chemical Structure| 6900-35-2 Chemical Structure| 6900-35-2

Structure of 6900-35-2

Chemical Structure| 6900-35-2

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Product Details of [ 6900-35-2 ]

CAS No. :6900-35-2
Formula : C4H5KO2
M.W : 124.18
SMILES Code : CC(C([O-])=O)=C.[K+]
MDL No. :MFCD00045884
InChI Key :LLLCSBYSPJHDJX-UHFFFAOYSA-M
Pubchem ID :23667354

Safety of [ 6900-35-2 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H315-H319-H335
Precautionary Statements:P261-P264-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P313-P337+P313-P362-P403+P233-P405-P501

Application In Synthesis of [ 6900-35-2 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 6900-35-2 ]

[ 6900-35-2 ] Synthesis Path-Downstream   1~3

  • 2
  • 3-chloropropyltrimethoxysilane [ No CAS ]
  • [ 6900-35-2 ]
  • [ 2530-85-0 ]
YieldReaction ConditionsOperation in experiment
95% With 4,4'-methylene-bis-(2,6-di-tert-butylphenol);tetra-n-butylphosphonium chloride; In acetone; at 115℃;Purification / work up; Durch 4 Stunden Erhitzen von Kaliummethacrylat mit 3-Chlorpropyltrimethoxysilan (molares Verhltnis 1,05:1) in Anwesenheit von 1 % nBu4PCl, 5% Aceton und 500 ppm 4,4'-Methylen-bis-(2,6-di-tert.-butylphenol) auf 115 C wurde nach Filtration ein Rohreaktionsgemisch erhalten, welches zusammengesetzt war aus 5 % Aceton, 94 % 3-Methacryloxypropyltrimethoxysilan und 1 % entsprechendem Disiloxan. Nach Entfernen des Acetons unter reduziertem Druck fhrte die Destillation ber eine Destillationsbrcke bei einem Blasendruck von 3 mbar (Siedetemperatur 103 C) zu 3-Methacryloxypropyltrimethoxysilan mit einer Reinheit von 99,6 %. Das Produkt zeigte eine APHA-Farbzahl von 3 und wies lediglich einen leichten Eigengeruch auf. Weder in der Destillationsblase, noch in der Destillationsbrcke oder der Vorlage wurde polymeres Material beobachtet. Die Destillationsausbeute betrug 95 %.Beispiel 2: Ein wie in Beispiel 1 erhaltenes Rohreaktionsgemisch von 3-Methacryloxypropyltrimethoxysilan wurde nach Entfernung des Acetons ber 12 Stunden mit einer Dosierrate von 100 ml/h ber eine Kurzwegdestillation vom Typ Leybold-Heraeus KD 3 bergetrieben. Durch Einstellung von 140 C und 4 mbar wurde ein Ablauf von etwa 5 % eingestellt. Wiederum wurde 3-Methacryloxypropylsilan mit einer Reinheit von 99,5 % erhalten, welches geruchlos war und eine APHA-Farbzahl von 6 aufwies. Wiederum wurden im Destillationsapparat, in der Produktvorlage und im Sumpf (Ablauf) keine polymeren Anteile beobachtet
  • 3
  • [ 6900-35-2 ]
  • [ 2530-87-2 ]
  • [ 2530-85-0 ]
YieldReaction ConditionsOperation in experiment
With 4,4'-Methylenebis(2,6-di-tert-butylphenol);tetra-n-butylphosphonium chloride; In acetone; at 115℃; for 4h; A crude reaction mixture containing of 5% of acetone, 94% of 3-methacryloyloxypropyltrimethoxysilane and 1% of the corresponding disiloxane was obtained by heating potassium methacrylate with 3-chloropropyltrimethoxysilane (molar ratio 1.05:1) in the presence of 1% of nBu4PCl, 5% of acetone and 500 ppm of 4,4'-methylenebis(2,6-di-tert-butylphenol) to 115 C. for 4 hours and effecting filtration. [0031] After removal of the acetone under reduced pressure, distillation via a distillation head at a still pressure of 3 mbar (boiling point 103 C.) led to 3-methacryloyloxypropyltrimethoxysilane having a purity of 99.6%. The product had an APHA color number of 3 and had only a slight natural odor. Polymeric material was observed neither in the distillation still nor in the distillation head nor in the receiver. The distillation yield is 95%. EXAMPLE 2 [0032] A crude reaction mixture obtained as in example 1 and comprising 3-methacryloyloxypropyltrimethoxysilane was distilled, after removal of the acetone, over 12 hours at a mixing rate of 100 ml/h by means of a short-path distillation of the Leybold-Heraeus KD 3 type. By setting the temperature and pressure 140 C. and 4 mbar respectively, a discharge of about 5% was established. 3-methacryloyloxypropylsilane having a purity of 99.5%, was odorless, and which exhibited an APHA color number of 6 was obtained. Once again, no polymeric fractions were observed in the distillation apparatus, in the product receiver or in the bottoms.
 

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