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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2044356Generated: October 31, 2026

Hydrochloric Acid → HCID 67050742, compound

https://huagongshe.com/reaction/2044356

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAminopyrazineHCID 78747—
ReactantHCID 58204289HCID 58204289—
SolventDiethyl EtherHCID 3283—
ProductHCID 67050742HCID 67050742—

Reaction Steps

Following the procedure for 128 without the use of HCl in diethyl ether, 2-[2-(2,2,2-trifluoro-ethyl)-2H-[1,2,4]triazol-3-yl]-4,5-dihydro-6-oxa-1,10b-diaza-benzo[e]azulene-9-carbaldehyde was reacted with 2-amino pyrazine to give 131 as a white solid. 1H NMR (CDCl3, 400 MHz): δ 8.03-7.99 (m, 3H); 7.87 (d, J=2.6 Hz, 1H); 7.84 (d, J=2.2 Hz, 1H); 7.31 (dd, J=8.3, 2.2 Hz, 1H); 7.20 (d, J=8.3 Hz, 1H); 6.92 (s, 1H); 5.49 (q, J=8.2 Hz, 2H); 5.42 (br s, 1H); 4.66 (d, J=5.4 Hz, 2H); 4.55 (t, J=6.0 Hz, 2H); 3.16 (t, J=6.0 Hz, 2H). LCMS: RT=9.93 min, M+H+=443

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08586574B2
Source datasetuspto-grants-2013_11
ORD IDord-f6fc45ce14e14a17878f5e52652701fb
Source noteuspto-grants-2013_11