trans-Cinnamic acid synthesis
- Product Name:trans-Cinnamic acid
- CAS Number:140-10-3
- Molecular formula:C9H8O2
- Molecular Weight:148.16
14371-10-9
322 suppliers
$6.00/25g
140-10-3
633 suppliers
$5.00/10g
Yield:140-10-3 100%
Reaction Conditions:
with cobalt(II) 2,9,16,23-phthalocyanine tetrasulfonic acid in lithium hydroxide monohydrate;acetonitrile at 20; under 760.051 Torr; for 150 h;UV-irradiation;
Steps:
General procedure: For generation of the carboxylic acids, 5 × 10-4 mol ofthe required aldehyde and 8 × 10-6 mol of water-soluble photosensitizer were added to acetonitrile (7.5 ml) plus water (7.5 ml) in a test tube. The samples were irradiated under visible light (288 power LED lamps, 1 W, 2.3 V,59,660 Lux for 150 h at room temperature while bubblingair through the mixture (20 cm3 min-1). To prevente vaporation of the solvent, the photoreactor was equipped with a strong fan that kept the reaction temperature low and the test tube was closed with parafilm. The stability of the sensitizer was monitored by UV-Vis spectroscopy (Cintra 101) during the reaction, by following the Q band intensity of CoPcS. At the end of the reaction, the solvent was removed under vacuum, and the residue was separated by column chromatography (silica gel, n-hexane/EtOAc,13:1) to give the corresponding carboxylic acid products.
References:
Hajimohammadi, Mahdi;Ahmadi Khamesi, Zahra;Nosrati, Parisa [Transition Metal Chemistry,2019,vol. 44,# 2,p. 167 - 173]
100-52-7
965 suppliers
$20.37/250g
64-19-7
1580 suppliers
$10.00/25ML
140-10-3
633 suppliers
$5.00/10g
637-44-5
218 suppliers
$6.00/1g
140-10-3
633 suppliers
$5.00/10g
98-87-3
0 suppliers
$30.00/25g
140-10-3
633 suppliers
$5.00/10g
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