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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1287279Generated: November 2, 2026

Ammonia → HCID 22758138, compound

https://huagongshe.com/reaction/1287279

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantDiethyl EtherHCID 3283—
Reactant6,7,8,9-tetrahydro-5H-benzo(7)annulen-6-amineHCID 41896—
ReactantLithiumHCID 3028194—
SolventEthanolHCID 702—
ProductHCID 22758138HCID 22758138—

Reaction Steps

A solution of 16.1 g. (0.10 mole) of 6-amino-6,7,8,9-tetrahydro-5H-benzocycloheptene in 100 ml. of diethyl ether and 500 ml. of liquid NH3 is treated portionwise with 15 g. of lithium in small pieces. After 10 minutes, the mixture is treated dropwise with absolute ethanol to completely discharge the color. After removal of NH3, the residue is cooled and treated with water. Further extraction with ether and removal of organic solvent leaves crude 6-amino-1,4,6,7,8,9-hexahydro-5H-benzocycloheptene which is converted to its N-benzoyl derivative with benzoyl chloride-pyridine and thence to the tetrol as described previously.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03984407
Source datasetuspto-grants-1976_10
ORD IDord-55cc190fc36b4f7681771676f9aa2d99
Source noteuspto-grants-1976_10