Propargyl bromide → 5-(4,4-dimethyl-2-oxo-1,4-Dihydro-2H-3,1-benzoxazin-6-yl)-1-prop-2-ynyl-1H-pyrrole-2-carbonitrile

Participants

Role	Name	HCID	Charge
Reactant	Propargyl bromide	HCID 7842	—
Reactant	5-(4,4-Dimethyl-oxo-1,4-dihydro-2H-3,1-benzoxazine-6-yl)-1H-pyrrole-carbonitrile	HCID 10220994	—
Product	5-(4,4-dimethyl-2-oxo-1,4-Dihydro-2H-3,1-benzoxazin-6-yl)-1-prop-2-ynyl-1H-pyrrole-2-carbonitrile	HCID 12044963	—

Reaction Steps

5-(4,4-Dimethyl-2-oxo-1,4,dihydro-2H-3,1-benzoxazin-6-yl)-1H-pyrrol-2-carbonitrile (0.74 g, 2.8 mmol) and propargylbromide (0.5 g, 4.2 mmol) were reacted, according to General Method A, to afford the title compound, m.p. 222-224° C. (0.13 g, 15%). 1H-NMR (DMSO-d6) δ 1.65 (s, 6H), 3.64 (t, J=2.3 Hz, 1H), 4.85 (d, J=2.3 Hz, 2H), 6.37 (d, J=4 Hz, 1H), 7.01 (d, J=8.2 Hz, 1H), 7.11 (d, J=4 Hz, 1H), 7.43 (m, 2H), 10.45 (s, 1H), MS (APCI (−)) m/z 304 (M−H)−

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US06562857B2
Source dataset	uspto-grants-2003_05
ORD ID	ord-1709086f63ba446ca231742bf3e2c0ba
Source note	uspto-grants-2003_05