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ChemicalBook CAS DataBase List Oxiranecarboxaldehyde, 3-phenyl-, (2R,3S)-rel- (9CI)

Oxiranecarboxaldehyde, 3-phenyl-, (2R,3S)-rel- (9CI) synthesis

10synthesis methods
-

Yield:100-52-7 60 %Chromat. ,71403-94-6 8 %Chromat. ,122-78-1 9 %Chromat.

Reaction Conditions:

with dihydrogen peroxide;sodium hydrogencarbonate in water at 70; for 2.5 h;

Steps:

4.5. Evaluation of catalyst

General procedure: Cinnamaldehyde (1 mmol) was dissolved in 25 mL of deionized water at 70 °C and 2.0 g β-CDP was added into a 150 mL three-necked flask fitted with a reflux condenser and magnetic stirrer. The mixture was heated to 70 °C in an oil bath with electric heater. Then, 1.5 mmol sodium bicarbonate dissolved in 4 mL 30% (w/w) H2O2 (35 mmol) was slowly dropped in. The resulting system was stirred with magnetic stirrer at 70 °C for 2.5 h, 600 rpm. The mixture was extracted by ethyl acetate and then centrifuged. The extracted liquid mixture was analyzed by GC-MS with naphthalene as an internal standard. The reproducibility for all the data was within 5%.

References:

Yang, Zujin;Zeng, Hui;Zhou, Xiantai;Ji, Hongbing [Tetrahedron,2012,vol. 68,# 29,p. 5912 - 5919] Location in patent:experimental part