Hydrochloric Acid → HCID 14438344, compound

Participants

Reaction Steps

sec-Butyl(1-octynyl)isopropoxyborane was prepared following the method of Example 12 with sec-butyldiisopropoxyborane (10.79 g, 58 mmol) in ethyl ether (58 mL) and added to a solution of 1-octynyllithium (64 mmol in 64 mL, THF) and quenched with HCl in ethyl ether (18.82 mL, 64 mmol). Yield: 10.1 g (74%), bp 68°-70° C. (0.1 mm Hg); n20D 1.4366; proton NMR (CDCl3) δ4.60 (septet, J=18 Hz, 1H), 2.23 (triplet, 2H), 1.17 (d, J=18 Hz, 6H), 0.87 (m, 9H); boron NMR (CDCl3) δ+41.6 ppm(s); mass spectrum (chemical ionization, isobutee) m/e 237 (M+H, 15%); IR (thin film) 2183, 1324 cm1. Anal. Calcd. for C15H29BO: C, 76.77; H, 12.38; B, 4.58. Found: C, 76.30; H, 12.39; B, 4.63.

Provenance & Evidence