Question

What unknown alcohol is this?? Help!
BRUKER 1000 500 1500 2000 2500 3000 3500 Wavenumber cm-1 3317.63 2955.19 1037.07
$proton.kp CDC13 (C:\opt \Bruker\TOP SP IN ) Organic2 63 1.0 pp 1.5 2.0 2.5 3.0 3.5 00 3.528 L0 -3.359 1.744$

Answer 1

Hi Dear Friend, the unknown is 2-methyl-1-propanol

I wanna make sure that you should have a confidence on my answer, hence i am also attaching standard ¹³C NMR (which is supposed to be used as a cross-confirmation check) and you won't posted that here. And also standard IR spectrum (Liquid film only) is attached below along with HNMR assignments.

IR:

3317 cm-1, strong, broad is due to aliphatic alcohol O-H stretch

2955 cm-1, strong is due to sp3 alkane C-H stretch

1470 cm-1, medium is due to sp3 alkane C-H bending

1037 cm-1, strong is due to alcohol C-O stretch

492 cm-1, medium is due to sp3 alkane C-H out of plane (deformations) vibrations

2-METHYL-1-PROPANOL C4H100 TRANSHETTANCET 2 4000 9000 2000 1500 Lobo SOO HAVENUMBERI - CH3 -CH CH2-OH 3:47 10 | 1646 86 1182 74 2337 10 1471 221128 66 3126 10 1463 25 1123 86 2950 4 1989 28 1114 62 293110 | 1367 35 1042 6 2874 9 1293 66 1004 33 2724 64 1248 6D 961 62 941 63 901 6B 819 58 661 6D 495 70 CH3

HNMR & CNMR:

proton.kp CDC23 {C:\opt \Bruker\TOPSPIN) Organic2 63 -3.528 -3.359 1.744 -0.913 - CH:d она dH3c7 Fь нь Ha - 3.52 ppm, broad singlet, 1H Hb - 3.35 ppm, doublet, 2H HC - 1.75 ppm, multiplet, 1H Hd - 0.92 ppm, doublet, 6H 3.5 2.0 1.5 S.S 1.00 2.01 1.02 2L9

Assign. ppm Hem 69.47 30.84 18.99 200 180 160 140 120 100 80 6040 200 ppm

Hope this helped you!

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