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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2252547Generated: November 3, 2026

Chlorosulfonyl isocyanate → tert-Butyl-2-cyano-5-(5,5-dimethyl-2-oxo-1,2,3,5-tetrahydro-4,1-benzoxazepin-7-yl)-1H-pyrrole-1-carboxylate

https://huagongshe.com/reaction/2252547

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChlorosulfonyl isocyanateHCID 70918—
Reactanttert-Butyl 2-(5,5-dimethyl-2-oxo-1,2,3,5-tetrahydro-4,1-benzoxazepin-7-yl)-1H-pyrrole-1-carboxylateHCID 68866427—
Producttert-Butyl-2-cyano-5-(5,5-dimethyl-2-oxo-1,2,3,5-tetrahydro-4,1-benzoxazepin-7-yl)-1H-pyrrole-1-carboxylateHCID 24956378—

Reaction Steps

Prepared from tert-butyl-2-(5,5-dimethyl-2-oxo-1,2,3,5-tetrahydro-4,1-benzoxazepin-7-yl)-1H-pyrrole-1-carboxylate and chlorosulfonyl isocyanate generally according to the procedure described in example 1. 1H-NMR (DMSO-d6) δ 10.03 (s, 1H), 7.35 (d, J=1.79 Hz, 1H), 7.31 (d, J=3.8 Hz, 1H), 7.23 (dd, J=1.79, 8.31 Hz, 1H), 7.12 (d, J=8.36 Hz, 1H), 6.44 (d, J=3.81 Hz, 1H), 4.25 (s, 2H), 1.55 (s, 6H), 1.39 (s, 9H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07323455B2
Source datasetuspto-grants-2008_01
ORD IDord-66961f8902a14226a698e9fe6d92f8a3
Source noteuspto-grants-2008_01