title: Alkyne [3 + 2] cycloadditions of iodosydnones toward functionalized 1,3,5-trisubstituted pyrazoles.
abstract: The cycloaddition of 4-iodosydnones with terminal alkynes proceeds with excellent regiocontrol to provide 5-iodo pyrazoles. These products participate smoothly in subsequent C-C and C-heteroatom bond forming processes.
authors.affiliation: Department of Chemistry, University of Sheffield, Sheffield S3 7HF, UK.
authors.forename: Duncan L
authors.initials: DL
authors.lastname: Browne
authors.forename: John B
authors.initials: JB
authors.lastname: Taylor
authors.forename: Andrew
authors.initials: A
authors.lastname: Plant
authors.forename: Joseph P A
authors.initials: JP
authors.lastname: Harrity