Formal [3+2]-Cycloaddition-Based Approach Using Ethoxymethylene Malonate Derivatives: Novel and Expedient Access to Functionalized N-Acyliminium Precursors - Saber, Moussa; Comesse, Sébastien; Dalla, Vincent; Daïch, Adam; Sanselme, Morgane; Netchitaïlo, Pierre (Synlett, 2010)