Application of four-membered ring chalcogenation reagents to the synthesis of new phosphorus-chalcogen heterocycles
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The reaction of four-membered ring chalcogenation reagents such as Lawesson’s reagent, 2,4-diferrocenyl-1,3,2,4-diathiadiphosphetane 2,4-disulfide (the ferrocene analogy of Lawesson’s reagent) and Woollins’ reagent with alkyl- or aryl-dithiols in refluxing toluene gave a series of five- to seven-membered organo-phosphorus-chalcogen heterocycles in 24% to 87% yields. Five representative X-ray structures confirm the formation of these five- to seven-membered heterocycles.
Hua , G , Cordes , D B , Slawin , A M Z & Woollins , J D 2016 , ' Application of four-membered ring chalcogenation reagents to the synthesis of new phosphorus-chalcogen heterocycles ' ARKIVOC , vol 2017 , no. 2 , pp. 9-20 . DOI: 10.3998/ark.5550190.p009.807
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DescriptionThe authors are grateful to the University of St Andrews for financial support.
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