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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1576830Generated: October 30, 2026

Sulfuric Acid → HCID 12426735, compound

https://huagongshe.com/reaction/1576830

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant2-BromopentaneHCID 7890—
ReactantSodium HydroxideHCID 14798—
ReactantSec-ButylamineHCID 24874—
SolventEthanolHCID 702—
ProductHCID 12426735HCID 1242673555.3%

Reaction Steps

Into a 150 ml flask, provided with a reflux condenser, were placed 14.6 g of monosec.butylamine dissolved in 15.5 ml of C2H5OH. Added thereto was 30 g of 2-bromo-pentane. This mass was then boiled to reflux temperature for 10-12 hours and thereafter cooled down and neutralized with dilute H2SO4. The whole was then evaporated to dryness. The residue thus obtained was treated with an excess of a 15% NaOH solution and extracted with 3 successive portions of ethyl ether. The ether extracts were then combined and washed with H2O, dried or anhydrous Na2SO4, filtered and the ether removed by evaporation. The residue was distilled under atmospheric pressure and the fraction was gathered which passed over at 160° - 161°C. 15.75 g of N-sec.butyl,N-sec.amylamine were obtained thereby. The picrate shows a melting point of from 61°-63°C (crystals from petroleum ether). The analysis of the picrate gave: calculated C = 48.58%, found C = 48.22%; calculated H = 6.50%, found H = 6.4%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03982931
Source datasetuspto-grants-1976_09
ORD IDord-838a029ed1364734b1a5cb066fd8c63d
Source noteuspto-grants-1976_09