Three-component reaction between dialkyl acetylenedicarboxylates, phosphites, and pyrrole, indole or benzotriazole leads to functionalised phosphonates in good yields.

No abstract

No abstract

Multicomponent reactions O 0359 Synthesis of Functionalized Phosphonates by Three-Component ReactionBetween Phosphites, Dialkyl Acetylenedicarboxylates and Pyrrole, Indole or Benzotriazole. -The three-component reaction between phosphites, dialkyl acetylenedicarboxylates and pyrrole, indole or benzotriazole gives functionalized phosphonates. Depending on the phosphites and heterocyclic systems used N-and/or C-substituted products [cf. (VIII) and (IX)] are formed. The reactions with P(O-Ph)3 (III) proceed diastereoselectively. -(ANARY-ABBASINEJAD*, M.; ROSTAMI, N.; PARHAMI, A.; HASSANABADI, A.; J. Chem. Res. 2007, 5, 291-295; Dep. Chem., Islamic Azad Univ., Yazd, Iran; Eng.) -M. Bohle 47-057

Efficient and Simple Route for the Synthesis of N-(2-Pyridyl)-4-ethoxy-5-oxo--2,5-dihydro-1H-pyrrole-2,3-dicarboxylates. -A synthetic procedure for highly functionalized 3-pyrrolin-2-ones is reported. -(ANARY-ABBASINEJAD*, M.; MIRHOSSAINI, M.; PARHAMI, A.; POURHASSAN, E.; Synth. Commun. 40 (2010) 9, 1350-1359,