Triisopropyl borate → Isopropyldiisopropoxyborane

Participants

Reaction Conditions

Reaction Steps

The title compound was prepared following the procedure of Example 1, from isopropyllithium (177 mL, 101 mmol) and triisopropoxyborane (19.0 g, 101 mmol). Solvent was removed at 0° C. and 15 mm Hg. The oil bath was heated to 80° C. Yield: 16.3 g (94.2 mmol, 93%), bp 138° C. (749 mm Hg); n20D 1.3853; proton NMR (CDCl3) δ 4.40 (septet, J=18 Hz, 2H); 1.13 (d, J=18 Hz, 12H), 0.93 (bs, 7H); boron NMR (neat)δ+30.5 ppm (s). Anal. Calcd. for C9H21BO2 : C, 62.80; H, 12.22; B, 6.29. Found: C, 62.59; H, 12.59; B, 5.93.

Provenance & Evidence