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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1955592Generated: October 31, 2026

Diisopropyl Ether → HCID 19070831, compound

https://huagongshe.com/reaction/1955592

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropyl EtherHCID 7914—
Reactantm-Tolyl isocyanateHCID 69303—
Reactant3-amino-1H-1,5-benzodiazepine-2,4(3H,5H)-dioneHCID 21955806—
SolventDimethylformamideHCID 6228—
ProductHCID 19070831HCID 1907083199.8%

Reaction Steps

A mixture of 3-amino-1H-1,5-benzodiazepine-2,4(3H,5H)-dione (1.761 g, 9.21 mmol) and m-tolylisocyanate (1.31 g, 10.13 mmol) in dimethylformamide (17 ml) is stirred for 1 hr under ice-cooling. To the reaction mixture is added diisopropyl ether (50 ml) and the resultant crystalline precipitates are filtered off to obtain Compound 5 (2.98 g; yield, 99%). M.p. >300° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05776929
Source datasetuspto-grants-1998_07
ORD IDord-564b8839f1c442a0976ea40ff2e35e6b
Source noteuspto-grants-1998_07