Preparation of a fluorous protecting group and its application to the chemoenzymatic synthesis of sialidase inhibitor
作者:Kiyoshi Ikeda、Hitomi Mori、Masayuki Sato
DOI:10.1039/b605519b
日期:——
ethyl chloride was prepared as a novel fluorous protecting reagent. Neu5Ac aldolase-catalyzed chemoenzymatic transformation of N-acetyl-D-mannosamine to Neu5Ac derivatives was achieved successfully by using the fluorous reagent not only for hydroxy group protection but also for fluorous tagging. This chemoenzymatic method was applied to the synthesis of 2-deoxy-2,3-didehydrosialic acid 1 known as a
Synthèse de nouveaux tensioactifs cationiques à partir des isothiocyanates de [2-(F-alkyl)éthyl] méthyléther et évaluation de leur pouvoir d'agrégation en vésicules
作者:V. Krier、M.A. Jouani、A. Cambon
DOI:10.1016/s0022-1139(98)00236-x
日期:1998.11
In this work we report the synthesis of [2-(F-alkyl)ethyl] methylether isothiocyanates by isomerisation of the corresponding thiocyanates. The isothiocyanates are very versatile potential synthetic intermediates. Their reactivity with diamines was investigated and the thioureas obtained, are excellent precursors in the synthesis of new perfluoroalkylated surfactants. The aggregation behaviour of some