Question

1 AC Org. 2.12 4-Methyl-3-Heptanol

Please explain the 1H nmr of 4-methyl-3-heptanol

Answer 1

* 4-methyl -3-heptanol. (Q) 1.48 0.95 (6) 1.33 (d) 0.90 1 11,25 (ali 0.90 : i on ice (a) 1.73 (f) 3.2019) peauss are indicated as from "a" to "g" in increasing onder of the chemical shift values in ppm. a = 0.90 terminal -ch, protons Correspond to multiplicity of triplet Since neighbouring proton's are 2. Integration value is 6. b0.95 EC protons with multiplicity of doublet and integrahan 3. c = 1.95 : CH PAotor o specifically quintet multiplicity : multiplet ) merge becacie chemical d=1.33 - Ch protons S 4 Shift values are same, . multiplicity - multiplets specifically quintet.

ex -1.48 = muliplicity is quintet integranon value = 2 Cl prctons f = 1,73 = multiplicity is quintet integration =1 CH proron. 9 = 3.20 = multiplicity is quartet integration : 1 CH Proton -attached to OH. In integration summary : Scppm) 0.90 0.95 mullhiplicity triplet a b doublet 3 le c. 1.25 quintet (4-single peak o 1.33 e 1.48 1.73 quintet quintet quintet quarrel - f - . 3.20