Please help me to identify the structure of this unknown compound based on NMR a

Question

Please help me to identify the structure of this unknown compound based on NMR and IR, and also identify the peaks, this unknown has boiling point of 83 degree celsius, i have eliminated other choices, these are two choices that one of them would be correct: 2-butanone and 3-butyn-2-one. Please help me asap! Thank you very much. Here are the IR and NMR result:

nworks 4: Thanh Dinh NMR BF17 Acetone Lab s 1.6 1.2 0.8 0.4 0.0 -0.4 3.6 3.2 2.8 2.4 2.0 4.0 4.4 PPM freq. of 0 ppm: 58.577184 MHz file: ...wnloadslchem 242 Lab 5 BF 17 TD dx expt: undefined processed size: 16384 complex points transmitter freq.: 58.577627 MHz LB: 0,100 GF: 0.0000 time domain size: 8192 points Hz/cm: 13.242 ppm/cm: 0.22607 width: 892.86 Hz 15.2423 ppm 0.108991 Hz/pt number of scans: 0

Explanation / Answer

If you see nmr spectra it indicates 3 types of protons present in molecule which is only possible if it be 2 butanone, because in case of 3-butyn-2-one there will two types of protons. So answer will be 2- butanone. Ir spectra indicates presence of carbonyl grop at 1717cm-1

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---