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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1608010Generated: October 30, 2026

Hydrogen Bromide → HCID 19850133, compound

https://huagongshe.com/reaction/1608010

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantHCID 19850140HCID 19850140—
CatalystPhosphinic AcidHCID 4124402—
ProductHCID 19850133HCID 19850133—

Reaction Steps

The product from step (b) (1.8 g) in 48% hydrobromic acid (18 ml) containing hypophosphorous acid (10 drops) was boiled at reflux under nitrogen for 5.5 hr. The solid which separated on cooling the solution was collected and recrystallised from water giving the dihydrobromide salt of the title compound as colourless needles (1.3 g) mp 240.5-142°-5°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04868306
Source datasetuspto-grants-1989_09
ORD IDord-78bf1d0580234c5da4a121c0d370a381
Source noteuspto-grants-1989_09