Nitrogen → N-{[6-(hex-1-yn-1-yl)pyridin-2-yl]methoxy}-1-(1-methyl-1H-tetrazol-5-yl)-1-phenylmethanimine

Participants

Reaction Steps

To a stirred solution of N-[(6-bromopyridin-2-yl)methoxy]-1-(1-methyl-1H-tetrazol-5-yl)-1-phenylmethanimine (0.20 g, 0.536 mmol, 1 eq.) in 2 ml dry THF “degassed” with N2, was added hexyne (0.176 g, 2.14 mmol, 4 eq.) followed by N-ethyldiisopropylamine (0.361 g, 2.79 mmol, 4 eq.), Copper Iodide (0.031 g, 0.161 mmol, 0.3 eq.) and Tetrakis(triphenylphosphine)palladium (0.186 g, 0.161 mmol, 0.3 eq.). The reaction was microwaved 120° C./normal/fixed hold/pre stir 100 s for 180 s. The reaction was diluted with EtOAc and filtered through a “celite” plug. The solvent was evaporated and the residue purified by chromatography on silica gel to give N-{[6-(hex-1-yn-1-yl)pyridin-2-yl]methoxy}-1-(1-methyl-1H-tetrazol-5-yl)-1-phenylmethanimine (0.19 g, 85% yield) as a yellow viscous oil.

Provenance & Evidence