ChemInform Abstract: UEBER DIE UMSETZUNG VON CHLORPHOSPHINEN MIT BETA‐CHLORACRYLSAEURE

Pudovik, A. N.; Dmitrieva, G. V.; Anoshina, N. P.; Zyablikova, T. A.; Khairullin, V. K.

doi:10.1002/chin.197240342

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Chemical Properties Of Phosphory-lated Thiophenes 21 React1

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2008

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“…However, the reaction run in acetic anhydride provides oxophospholanone (102) in 58% yield. With acrylic or methacrylic amide, 2-thienyldichlorophosphine reacts smoothly [94][95][96][97].…”

Section: Chemical Properties Of Phosphory-lated Thiophenes 21 Reactmentioning

confidence: 99%

Phosphorylation of Thiophenes

Ivonin¹,

Tolmachev²,

Пинчук³

2008

COC

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This review deals with synthetic methods, chemical transformations, and some physical properties of thienyland benzothienyl substituted phosphorus compounds bearing P-Het or P-CH 2 -Het bonds.The basic synthetic approaches to these compounds include reactions of metalated thiophenes with phosphorus(III) and (V) halides, phosphorylation of thiophenes in the presence of a mild Lewis acid, use of halogenothiophenes in the Arbuzov reaction, and phosphorylation of thiophenes with phosphorus(III) halides in basic medium. Synthetic approaches to condensed heterocyclic systems of novel types are also considered.Investigation of chemical properties of phosphorylated thiophenes has revealed that, despite the great similarity with phenyl analogues, differences connected to the nature of the heterocycle are observed. The tertiary phosphines bearing at least one thienyl substituent are less active in quaternization and oxidation reactions. At the same time, basic hydrolysis leading to C-P bond cleavage is facilitated, as compared to benzene derivatives.

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“…However, the reaction run in acetic anhydride provides oxophospholanone (102) in 58% yield. With acrylic or methacrylic amide, 2-thienyldichlorophosphine reacts smoothly [94][95][96][97].…”

Section: Chemical Properties Of Phosphory-lated Thiophenes 21 Reactmentioning

confidence: 99%