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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2289241Generated: October 31, 2026

Pyridine → HCID 135838164, compound

https://huagongshe.com/reaction/2289241

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantN-bromobutanimideHCID 67184—
ReactantHCID 135838149HCID 135838149—
SolventBenzeneHCID 241—
ProductHCID 135838164HCID 135838164—

Reaction Steps

N-(8-Bromo-1,2,5,6-tetrahydro-9-nitro-1-oxobenzo[f]quinazolin-3-yl)- pivalamide (0.23 g, 0.5 mmole) was reacted with N-bromosuccinimide (0.12 g, 0.7 mmole) and pyridine (0.06 ml, 0.8 mmole) in dry benzene (150 ml) in the same manner as in example 2. The crude product was purified by trituration with methanol:water (1:9), followed by filtration and washing (water and methanol) to give, after drying, N-(8-bromo-1,2-dihydro-9-nitro-1-oxobenzo[f]quinazolin-3-yl)pivala- mide as a pale yellow solid. (0.20 g, 94%) 1H NMR(DMSO-d61 200MHz) δ: 1.27(s, 9H, t-butyl); 7.76(d, J=9.0 Hz, 1H, Ar); 8.32(d, J=9.0 Hz, 1H, Ar); 8.65(s, 1H, Ar); 10.21(s, 1H, Ar); 11.40(s, 1H, NH:I; 12.45(br s, 1H, NH).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06090941
Source datasetuspto-grants-2000_07
ORD IDord-72538ba34bb542bba6c9c8cba0477f42
Source noteuspto-grants-2000_07