Title: sec-Butyl Iodide
CAS Registry Number: 513-48-4
CAS Name: 2-Iodobutane
Molecular Formula: C4H9I
Molecular Weight: 184.02
Percent Composition: C 26.11%, H 4.93%, I 68.96%
Line Formula: CH3CH2CHICH3
Literature References: Prepn of dl-form from 2-butanol: Kornblum et al., J. Am. Chem. Soc. 77, 5528 (1955); from dibutyl ether: Long, Freeguard, Chem. Ind. (London) 1965, 223. Prepn of d-form from l-butanol: Kenyon et al., J. Chem. Soc. 1935, 1072. Prepn of l-form from d-2-butanol: Levene, Rothen, J. Biol. Chem. 115, 415 (1936); Kornblum et al., J. Am. Chem. Soc. 70, 746 (1948).
Derivative Type: dl-Form
Properties: Liquid, rapidly turns brown on exposure to light. bp 120°. mp -104°. d420 1.592, nD20 1.4991: Vogel, J. Chem. Soc. 1943, 636. Practically insol in water. Sol in alc, ether. Protect from light.
Melting point: mp -104°
Boiling point: bp 120°
Index of refraction: nD20 1.4991: Vogel, J. Chem. Soc. 1943, 636
Density: d420 1.592
Derivative Type: l-Form
Properties: Liquid, bp 118°. d420 1.596, nD20 1.495, [a]D24 -15.9° (neat); also reported as [a]D17 -31.98° (Kornblum et al.).
Boiling point: bp 118°
Optical Rotation: [a]D24 -15.9° (neat); [a]D17 -31.98° (Kornblum et al.)
Index of refraction: nD20 1.495
Density: d420 1.596
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