Benign and high-yielding, large-scale synthesis of diphenylphosphinodithioic acid and related compounds

J Wagner, M Ciesielski, CA Fleckenstein…

Index: Wagner, Jochen; Ciesielski, Michael; Fleckenstein, Christoph A.; Denecke, Hartmut; Garlichs, Florian; Ball, Andreas; Doering, Manfred Organic Process Research and Development, 2013 , vol. 17, # 1 p. 47 - 52

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Citation Number: 6

Abstract

Diphenylphosphinodithioic acid (6b) and its triethyl ammonium salt (6a) were prepared by two new synthetic pathways, each employing cheap and readily available starting materials. These facile one-pot reactions were conducted on a kilogram scale and produced the desired products in high yield and quality, thereby surpassing all previously known routes. The synthesis of triethyl ammonium salts of 6 H-dibenzo [c, e][1, 2] oxaphosphinine-6- ...