DR ANTHONY MELVIN CRASTO,WorldDrugTracker, helping millions, A 90 % paralysed man in action for you, I am suffering from transverse mylitis and bound to a wheel chair, With death on the horizon, nothing will not stop me except God................DR ANTHONY MELVIN CRASTO Ph.D ( ICT, Mumbai) , INDIA 25Yrs Exp. in the feld of Organic Chemistry,Working for GLENMARK GENERICS at Navi Mumbai, INDIA. Serving chemists around the world. Helping them with websites on Chemistry.Million hits on google, world acclamation from industry, academia, drug authorities for websites, blogs and educational contribution

Sunday, 24 January 2016

2,2-dimethyl-5-acetyl- 1,3-dioxane-4,6-dione/Acetyl-Meldrum’s acid



 The product has an Rf of 0.22 in 5% methanol/methylene chloride (silica gel) and displays the following spectral data: 1H NMR (300 MHz, CDCl3) δ: 1.71 (s, 6 H), 2.64 (s, 3 H) ; 13C (75 MHz, CDCl3) δ: 37.5, 42.4, 45.1, 106.2, 118.6, 174.8, 184.2, 207.5 .  The acidic proton was not observed in the 1H NMR spectrum.


lightyellow plate, mp 87.6-88.0°C


.









/////////
Posted by at
Labels: , , , ,

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)