Lithium Hexamethyldisilazide → HCID 86760277, compound

Participants

Reaction Conditions

Reaction Steps

Pinanediol (2-benzyloxy-1-chloropropyl)boronate, dissolved (3.85 g, 10.6 mmol)) in THF (60 mL), was added to a solution of LiHMDS (10.6 mmol) in THF at −78° C. The solution was stirred for 1 h at −78° C. and allowed to warm to room temperature. Solvent was evaporated and the residue redissolved in hexanes (120 mL). The solid was filtered and the filtrate recooled to −78° C., and a solution of HCl in 1,4-dioxane (4 N, 8.0 mL) was added. The solution was allowed to warm to room temperature while stirring overnight. The solvent was evaporated to yield 2.55 g (63%) of a brown oil. 1H-NMR (CDCl3) d 8.11 (br s, 3H), 7.35 (m, 5H), 4.57 (m, 2H), 4.32 (m, 1H), 3.16 (br s, 1H), 2.34-1.83 (m, 6H), 1.38 (s, 3H), 1.33 (m, 3H), 1.24 (s, 3H), 0.79 (s, 3H).

Provenance & Evidence