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Phase Transfer Catalyzed-Wittig Reactions of Diphenyl Diethyl Phosphonium Salt and Diphenyl Dibenzyl Phosphonium Salt with Subtituted Aromatic Aldehydes

Wen Huang

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Abstract

PTC-Wittig reactions of diphenyl diethyl phosphonium salt and diphenyl dibenzylphosphonium salt with para-substituted aromatic aldehydes were studied.Experimental resu-lts showed that the resulting products were mainly of the E-type.The E-selectivity wasaffected apparently by sterie effect of the para-substituents of aromatic aldehydes and pola-rity of the solvents.A possible mechanism was proposed.

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PTC-Wittig reactions of diphenyl diethyl phosphonium salt and diphenyl dibenzylphosphonium salt with para-substituted aromatic aldehydes were studied.Experimental resu-lts showed that the resulting products were mainly of the E-type.The E-selectivity wasaffected apparently by sterie effect of the para-substituents of aromatic aldehydes and pola-rity of the solvents.A possible mechanism was proposed.

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Available abstract

PTC-Wittig reactions of diphenyl diethyl phosphonium salt and diphenyl dibenzylphosphonium salt with para-substituted aromatic aldehydes were studied.Experimental resu-lts showed that the resulting products were mainly of the E-type.The E-selectivity wasaffected apparently by sterie effect of the para-substituents of aromatic aldehydes and pola-rity of the solvents.A possible mechanism was proposed.

Key concepts: Chemistry, Phosphonium salt, Phosphonium, Wittig reaction, Salt (chemistry), Selectivity, Catalysis, Organic chemistry

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Phase Transfer Catalyzed-Wittig Reactions of Diphenyl Diethyl Phosphonium Salt and Diphenyl Dibenzyl Phosphonium Salt with Subtituted Aromatic Aldehydes — Research Paper | ScholarLens