Photocatalytic activity study of Co(II)tetra(chloromethyl-phenyl) porphyrin in oxidation reaction of aromatic aldehydes

Abstract

<span style="font-size:12.0pt;font-family: " times="" new="" roman";mso-fareast-font-family:"times="" roman";mso-ansi-language:="" en-in;mso-fareast-language:en-in;mso-bidi-language:ar-sa"="" lang="EN-IN">In the presence of Co(II) [meso-tetra(chloromethyl-phenyl) porphyrin] (CoTCMPP), the oxidation of aromatic alde-hydes has been investigated with molecular oxygen <span style="font-size:12.0pt;font-family:" times="" new="" roman";mso-fareast-font-family:="" hiddenhorzocr;mso-ansi-language:en-in;mso-fareast-language:en-in;mso-bidi-language:="" ar-sa"="" lang="EN-IN">under <span style="font-size:12.0pt;font-family:" times="" new="" roman";="" mso-fareast-font-family:"times="" roman";mso-ansi-language:en-in;mso-fareast-language:="" en-in;mso-bidi-language:ar-sa"="" lang="EN-IN">illumination with 450W high pressure mercury lamp(HPML). The oxygen uptake is measured during the reaction process. It is observed that CoTCMPP can catalyze the oxidation of aromatic aldehydes under the mild condition (30°C, 1 atm O₂). The major products are aromatic acids. The effects of <span style="font-size:12.0pt; font-family:" times="" new="" roman";mso-fareast-font-family:hiddenhorzocr;mso-ansi-language:="" en-in;mso-fareast-language:en-in;mso-bidi-language:ar-sa"="" lang="EN-IN">some <span style="font-size:12.0pt;font-family:" times="" new="" roman";mso-fareast-font-family:="" "times="" roman";mso-ansi-language:en-in;mso-fareast-language:en-in;="" mso-bidi-language:ar-sa"="" lang="EN-IN">factors, such as catalyst, substrate, solvent and additive in the oxidation reaction system are discussed in detail.</span></span></span></span></span>