Hydrochloric Acid → N-(2-aminopropyl)propane-1,2-diamine

温度

110 °C

Into a 500 mL flask, 180 mL of de-ionized water was placed. To this, 120 mL of 1,2-diaminopropane (1.39 mol) was added and a condenser was fitted to the flask. 50 mL (0.507 mol) of hydrogen chloride (37%) was added dropwise and the reaction allowed to subside before adding 10 mL of 2-methylaziridine (0.142 mol). The solution was then heated to 110° C. for 25 hours. The solvent and excess 1,2-diaminopropane were then removed by vacuum distillation. The crude product was then distilled under vacuum (approximately 40 torr) with a boiling point of 110° C. The yield was 24% with 4.541 g obtained. The purity was determined by NMR, showing multiplets at 2.71, 2.35 and 0.91 ppm which corresponded to those in a commercial sample. There was an additional peak at 2.11 ppm which may be due to a structural isomer of the product.

1. customa condenser was fitted to the flask
2. customThe solvent and excess 1,2-diaminopropane were then removed by vacuum distillation
3. distillationThe crude product was then distilled under vacuum (approximately 40 torr) with a boiling point of 110° C
4. customThe yield was 24% with 4.541 g obtained

ORDレコード

ord-058266bcc3c143fbb63f34bba87704bd

出典データセット

uspto-grants-2015_05

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US09029189B2