Methyl chloroformate → HCID 135471195, compound

Participants

Reaction Steps

To 32 (91 mg, 0.37 mmol), methyl chloroformate (63 μL, 0.81 mmol), dimethylaminopyridine (DMAP) (23 mg, 0.18 mmol) and NEt3 (108 μL, 0.77 mmol) following General Procedure L was obtained 70 (66 mg, 59%, 79% based on recovered starting material) after flash chromatography (30% EtOAc/2% AcOH/Hexanes-10% THF/2% AcOH/EtOAc). 1H NMR (300 MHz, MeOD) δ 0.86 (t, J=6.9 Hz, 3H), 1.20 (bs, 12H), 1.35 (s, 3H), 1.55 (m, 1H), 1.71-1.75 (m, 1H), 3.59 (s, 3H); 13C NMR (75 MHz, MeOD) δ 13.3, 21.8, 24.4, 27.0, 28.5, 28.6, 29.0, 30.2, 31.0, 50.4, 58.3, 124.6, 168.1, 187.7, 196.7. HRMS (EI) m/z calculated for C15H24O4S+) 300.1389 obsd. 300.1375.

Provenance & Evidence