1,3-Cyclopentanedione

1,3-cyclopentanedione.png Cyclopentane-1,3-dione 3859-41-4 77466 223-372-8 98107S5K06 224233 41456 1362728 200797 69875 1S/C5H6O2/c6-4-1-2-5(7)3-4/h1-3H2 LOGSONSNCYTHPS-UHFFFAOYSA-N C1CC(=O)CC1=O white solid 1.37 g/cm3 149-151 07 Warning 315 319 335 261 264 271 280 302+352 304+340 305+351+338 312 321 332+313 337+313 362 403+233 405 501 1,3-Cyclopentanedione is an organic compound with the formula (CH2)3(CO)2. It is one of two isomeric cyclopentanediones, the other being 1,2-cyclopentanedione. The enol is predicted to be about 1-3 kcal/mol more stable than the diketo form.10.1021/acsomega.8b01008 free DFT Study to Explore the Importance of Ring Size and Effect of Solvents on the Keto–Enol Tautomerization Process of α- and β-Cyclodiones 2018 Jana Kalyanashis Ganguly Bishwajit ACS Omega 3 7 8429–8439 31458971 6644555 The enol structure has been confirmed by X-ray crystallography.10.1107/S0108270189011352 Structure of 1,3-cyclopentanedione 1990 Katrusiak A. Acta Crystallographica Section C: Crystal Structure Communications 46 7 1289–1293 1990AcCrC..46.1289K Preparation The compound is prepared by hydrogenation of 2-cyclopentene-1,4-dione using zinc/acetic acid.10.1021/jo00983a027 Improved Preparation of 1,3-cyclopentanedione 1972 McIntosh John M. Beaumier Pierre. The Journal of Organic Chemistry 37 18 2905–290610.15227/orgsyn.042.0036 free 2-Cyclopentene-1,4-Dione Gary H. Rasmusson Herbert O. House Edward F. Zaweski Charles H. DePuy Organic Syntheses 1962 42 36 References Category:Diketones Category:Cyclic ketones Category:Cyclopentanes