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C.D. Smith, I.R. Baxendale, S. Lanners, J.J. Hayward, S.C. Smith and S.V. Ley, Org. Biomol. Chem. 2007, 5, 1559-1561.
http://pubs.rsc.org/en/content/articlelanding/2007/ob/b702995k#!divAbstract
The cycloaddition of acetylenes with azides to give the corresponding 1,4-disubstituted 1,2,3-triazoles is reported using immobilised reagents and scavengers in pre-packed glass tubes in a modular flow reactor.