Structural Formula Vector Image
Title: 3-Chloro-1-butene
CAS Registry Number: 563-52-0
Additional Names: g-Chloro-a-butylene; a-methallyl chloride; a-methylallyl chloride
Molecular Formula: C4H7Cl
Molecular Weight: 90.55
Percent Composition: C 53.06%, H 7.79%, Cl 39.15%
Line Formula: CH2=CHCHClCH3
Literature References: Prepn of DL-form: Böhme, Ber. 71, 2372 (1938), Curtin, Gerber, J. Am. Chem. Soc. 74, 4052 (1952); of D(-)-form: Böhme, loc. cit.; of L(+)-form: Young, Caserio, J. Org. Chem. 26, 245 (1961). Absolute configuration: Young, Caserio, loc. cit. Equilibrium constant for isomerization to 1-chloro-2-butene: Dittmer, Marcantonio, J. Org. Chem. 29, 3473 (1964).
Derivative Type: DL-Form
Properties: Liquid, bp 63.9-64.2°, bp26 -5°. d420 0.9001. nD20 1.4150.
Boiling point: bp 63.9-64.2°; bp26 -5°
Index of refraction: nD20 1.4150
Density: d420 0.9001
Derivative Type: D(-)-Form
Properties: Liquid, bp26 -5°. aD20 -2.52° (neat).
Boiling point: bp26 -5°
Optical Rotation: aD20 -2.52° (neat)
Derivative Type: L(+)-Form
Properties: Liquid, aD25 +5.87° (neat).
Optical Rotation: aD25 +5.87° (neat)

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