4,4,5,5-Tetramethyl-2-(prop-1-en-2-yl)-1,3,2-dioxaborolane → HCID 86711396, compound

Participants

Reaction Conditions

Reaction Steps

118-1. A mixture of 9-iodo-3,4,7,8-tetrahydro-[1,4]diazepino[7,1-a]isoquinoline-2,5-dione (750 mg, 2.12 mmol), 4,4,5,5-tetramethyl-2-(prop-1-en-2-yl)-1,3,2-dioxaborolane (712 mg, 4.24 mmol) Cs2CO3 (1.72 g, 5.29 mmol) and Pd(PPh3)4 (122 mg, 0.11 mmol) in dioxane/H2O (9:1, 20 mL) was heated to 100° C. for 2 h in a microwave reactor. The mixture was then concentrated in vacuo and the residue purified by flash chromatography (SiO2, heptane to AcOEt to AcOEt/MeOH 85:15) to give the title compound (550 mg). UPLC-MS: MS 269.2 (M+H+); UPLC rt 0.83 min.

Provenance & Evidence