Nitrogen → HCID 86653116, compound

Participants

Reaction Steps

To a stirred solution of N-[(2,5-dichloro-1,3-thiazol-4-yl)methoxy]-1-(1-methyl-1H-tetrazol-5-yl)-1-phenylmethanimine (0.15 g, 0.406 mmol, 1 eq.) in 3 ml dry THF “degassed” with N2, was added Cyclopropylacetylene (0.029 g, 0.447 mmol, 1.1 eq.) followed by N-ethyldiisopropylamine (0.209 g, 1.62 mmol, 4 eq.), Copper Iodide (0.015 g, 0.081 mmol, 0.2 eq.) and Tetrakis(triphenylphosphine)palladium (0.046 g, 0.041 mmol, 0.1 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-{[5-chloro-2-(cyclopropylethynyl)-1,3-thiazol-4-yl]methoxy}-1-(1-methyl-1H-tetrazol-5-yl)-1-phenylmethanimine (0.137 g, 71% yield, 78:5 mixture of stereoisomers) as a yellow viscous oil.

Provenance & Evidence