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5,6-dihydro-1H-pyridin-2-one

CAS No.
6052-73-9
Chemical Name:
5,6-dihydro-1H-pyridin-2-one
Synonyms
5,6-Dihydro-2(1H)-pyridinone;5,6-Dihydropyridin-2(1H)-one;3,4-Dehydro-2-piperidone;5,6-Dihydro-2(1H)-pyridone;1,5,6-trihydropyridin-2-one;2,3-dihydro-1H-pyridin-6-one;5,6-dihdyro-1H-pyridin-2-one;5,6-dihydro-1H-pyridin-2-one;5,6-dihydro-2(1H)-pyridineone;2(1H)-Pyridinone, 5,6-dihydro-
CBNumber:
CB91454850
Molecular Formula:
C5H7NO
Molecular Weight:
97.12
MDL Number:
MFCD19216835
MOL File:
6052-73-9.mol
MSDS File:
SDS
Last updated:2026-05-28 03:59:20

5,6-dihydro-1H-pyridin-2-one Properties

Melting point 187-188℃
Boiling point 287.0±23.0 °C(Predicted)
Density 1.052±0.06 g/cm3(Predicted)
storage temp. 2-8°C
form Solid
pka 15.07±0.20(Predicted)
color Light brown to gray
InChI InChI=1S/C5H7NO/c7-5-3-1-2-4-6-5/h1,3H,2,4H2,(H,6,7)
InChIKey OXRRHYRRQWIHIV-UHFFFAOYSA-N
SMILES C1(=O)NCCC=C1
FDA UNII 77GJ5LL56Z

SAFETY

Risk and Safety Statements

5,6-dihydro-1H-pyridin-2-one price More Price(37)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
ChemScene CS-W006454 5,6-Dihydropyridin-2(1H)-one ≥97% 6052-73-9 100mg $27 2026-06-04 Buy
ChemScene CS-W006454 5,6-Dihydropyridin-2(1H)-one ≥97% 6052-73-9 250mg $55 2026-06-04 Buy
ChemScene CS-W006454 5,6-Dihydropyridin-2(1H)-one ≥97% 6052-73-9 1g $219 2026-06-04 Buy
ChemScene CS-W006454 5,6-Dihydropyridin-2(1H)-one ≥97% 6052-73-9 5g $989 2026-06-04 Buy
Matrix Scientific 297189 5,6-Dihydropyridin-2(1H)-one 6052-73-9 250.00mg $67 2026-05-19 Buy
Product number Packaging Price Buy
CS-W006454 100mg $27 Buy
CS-W006454 250mg $55 Buy
CS-W006454 1g $219 Buy
CS-W006454 5g $989 Buy
297189 250.00mg $67 Buy

5,6-dihydro-1H-pyridin-2-one Chemical Properties, Uses, Production

Uses

A new pyridone alkaloid as an intermediate in the synthesis of Piperlongumine (P482850).

Synthesis

2-Propenamide, N-3-buten-1-yl-

1415686-28-0

5,6-dihydro-1H-pyridin-2-one

6052-73-9

The general procedure for the synthesis of 5,6-dihydro-2(1H)-pyridinone from the compound (CAS:1415686-28-0) was as follows: intermediate 1 (41.6 g, 0.33 mol) was dissolved in 416 ml of anhydrous toluene, and the second-generation Grubbs catalyst (0.7 g) was added under stirring. The reaction mixture was heated to 8590 °C and the reaction was continuously stirred for 7 hours. The reaction progress was monitored by gas chromatography (GC) and after confirming the completion of the reaction, the reaction mixture was cooled to room temperature. Subsequently, 8.5 ml of ammonia was added and stirring was continued for 1 hour. The reaction mixture was washed with water (3 x 30 ml) and the organic phase was dried with anhydrous Na2SO4. After filtration to remove the desiccant, the filtrate was concentrated to dryness under reduced pressure. To the concentrate, 300 ml of isopropyl ether was added and refluxed for 20 min, then cooled to -50 °C and allowed to stand for 6 h. The solid was collected by filtration. The solid was collected by filtration and washed with appropriate amount of isopropyl ether to give 24 g of intermediate 2 (white powdery solid) in 75% yield.

References

[1] Patent: CN106432189, 2017, A. Location in patent: Paragraph 0011; 0020
[2] European Journal of Medicinal Chemistry, 2012, vol. 57, p. 344 - 361
[3] European Journal of Medicinal Chemistry, 2016, vol. 107, p. 233 - 244
[4] European Journal of Medicinal Chemistry, 2017, vol. 125, p. 453 - 463
[5] Chemistry of Heterocyclic Compounds, 2016, vol. 52, # 3, p. 183 - 191

1415686-28-0
6052-73-9
Synthesis of 5,6-dihydro-1H-pyridin-2-one from 2-Propenamide, N-3-buten-1-yl-

5,6-dihydro-1H-pyridin-2-one Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 105)
Supplier Tel Email Country ProdList Advantage
Wuhan chuanghao Biotechnology Co., Ltd 13361917963 876725023@qq.com China 282 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Chemsky (shanghai) International Co.,Ltd 021-50135380 shchemsky@sina.com China 15350 60
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Hangzhou Sage Chemical Co., Ltd. +86057186818502 13588463833 info@sagechem.com China 10265 58
Nanjing Norris-Pharm Technology Co., Ltd 13901585132 sales@norris-pharm.com China 8869 55
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
Nantong MYBio-pharm. Co., Ltd. 0513-85921823 18662920231 sales@ntminyanmedical.com China 4563 58
Wuxi Zhongkun Biochemical Technology Co., Ltd. 0510-85629785 18013409632; sales@reading-chemicals.com China 15165 58

View Latest Price from 5,6-dihydro-1H-pyridin-2-one manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
5,6-dihydro-1H-pyridin-2-one pictures 2019-07-06 5,6-dihydro-1H-pyridin-2-one
6052-73-9
$1.00 1kg 98% 200kg Career Henan Chemical Co
5,6-dihydro-1H-pyridin-2-one 5,6-dihdyro-1H-pyridin-2-one 1,5,6-trihydropyridin-2-one 2(1H)-Pyridinone, 5,6-dihydro- 3,4-Dehydro-2-piperidone 5,6-Dihydro-2(1H)-pyridone 5-AMino-2-pentenoic Acid LactaM 2,3-dihydro-1H-pyridin-6-one 1,2,5,6-tetrahydropyridin-2-one 5,6-dihydro-1H-pyridin-2-one,97% 5,6-dihydro-2(1H)-pyridineone 5,6-Dihydro-2(1H)-pyridinone 5,6-Dihydropyridin-2(1H)-one 6052-73-9 Heterocycles Intermediates & Fine Chemicals Pharmaceuticals Amines