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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1968640Generated: October 29, 2026

Benzenamine, 3-ethynyl- → N-(3-ethynylphenyl)-6-nitroquinazolin-4-amine

https://huagongshe.com/reaction/1968640

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzenamine, 3-ethynyl-HCID 104682—
ReactantN'-(2-cyano-4-nitrophenyl)-N,N-dimethylmethanimidamideHCID 10900084—
SolventAcetic AcidHCID 176—
ProductN-(3-ethynylphenyl)-6-nitroquinazolin-4-amineHCID 1604544393%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of N′-(2-cyano-4-nitrophenyl)-N,N-dimethylformamidine (1.00 g, 4.58 mmol) and 3-aminophenylacetylene (0.64 g, 5.49 mmol) in HOAc (15 mL) was stirred at 100° C. for 3 h and cooled to room temperature. The precipitate was filtered, washed with ether, and was dried in vacuo to give 1.23 g (93%) of N-(3-ethynylphenyl)-6-nitroquinazolin-4-amine as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08426430B2
Source datasetuspto-grants-2013_04
ORD IDord-4562643278c1410c984b78e43112c2ef
Source noteuspto-grants-2013_04