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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2280998Generated: October 31, 2026

Water → HCID 71743940, compound

https://huagongshe.com/reaction/2280998

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPropylphosphonic anhydrideHCID 111923—
Reactant8-Quinazolinecarboxaldehyde, 5-bromo-, oximeHCID 131733510—
SolventDimethylformamideHCID 6228—
ProductHCID 71743940HCID 7174394059.8%

Reaction Conditions

Temperature100 °C

Reaction Steps

To a solution of 5-Bromo-quinazoline-8-carbaldehyde oxime (3000.00 mg; 11.90 mmol; 1.00 eq.) in DMF (15 ml) was added 2,4,6-Tripropyl-[1,3,5,2,4,6]trioxatriphosphinane 2,4,6-trioxide (10.42 ml; 17.85 mmol; 1.50 eq.) 50% in DMF. The resulting mixture was stirred at 100° C. for 45 min, LCMS showed major peak (MS: 252/254, 234/236) and small (MS: 208/209). The reaction mixture was cooled, poured into water, extracted with EtOAc, dried and concentrated to yield sticky solid, which was washed with ether to collected the title product (1665 mg. yield 59.6%). LC-MS (232/234 and 250/252).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09139568B2
Source datasetuspto-grants-2015_09
ORD IDord-e3b4570d84cc41c2acfc099b103e0ae7
Source noteuspto-grants-2015_09