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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 51005Generated: October 30, 2026

1-Bromo-2-Chloroethane → 1-(2-Chloroethyl)-1H-1,2,3-benzotriazole

https://huagongshe.com/reaction/51005

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Bromo-2-ChloroethaneHCID 7849—
ReactantHCID 178418385HCID 178418385—
Product1-(2-Chloroethyl)-1H-1,2,3-benzotriazoleHCID 302759036%

Reaction Steps

1-(2-Chloroethyl)-1H-1,2,3-benzotriazole (164 mg, 36%) was prepared from benzotriazole (300 mg, 2.52 mmol) and 1-bromo-2-chloro ethane (397 mg, 2.77 mmol) according to the procedure of Example 291. The title compound was isolated as a yellow oil (48 mg, 98%) according to the method of Example 286, Step C from (8aS,12aR)-6,7,8a,9,10,11,12,12a-octahydro-5H-pyrido[4,3-b][1,4]thiazepino[2,3,4-hi]indole (30 mg, 0.12 mmol) and 1-(2-chloroethyl)-1H-1,2,3-benzotriazole (44 mg, 0.24 mmol). 1H NMR (CDCl3) δ1.69-2.20 (m, 4H), 2.39-2.45 (m, 1H), 2.61-2.68 (m, 1H), 2.72-2.81 (m, 1H), 2.84-3.01 (m, 2H), 3.03-3.12 (m, 2H), 3.20-3.27 (m, 1H), 3.49-3.60 (m, 1H), 3.74-3.84 (m, 1H), 4.06 (t, 1H, J=6.7 Hz), 4.76 (t, 1H, J=6.6 Hz), 4.96 (t, 1H, J=6.2 Hz), 6.61 (t, 1H, J=7.5 Hz), 6.82 (d, 1H, J=7 Hz), 6.95 (dd, 1H, J=1.1, 7.7 Hz), 7.34-7.62 (m, 3H), 8.08 (t, 1H, J=7.6 Hz) ppm.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06713471B1
Source datasetuspto-grants-2004_03
ORD IDord-c18a0289501848ab8df0b65ed10afac8
Source noteuspto-grants-2004_03