Structural Formula Vector Image
Title: a,-Dibromo-d-camphor
CAS Registry Number: 514-12-5
CAS Name: d-3,3-Dibromo-1,7,7-trimethylbicyclo[2.2.1]heptan-2-one
Additional Names: d-3,3-dibromo-2-bornanone; dibromated camphor
Molecular Formula: C10H14Br2O
Molecular Weight: 310.03
Percent Composition: C 38.74%, H 4.55%, Br 51.55%, O 5.16%
Literature References: Prepd by brominating a-bromocamphor: Lowry, J. Chem. Soc. 73, 569 (1898). Conformation: Brutcher et al., J. Am. Chem. Soc. 81, 4915 (1959). Review: J. L. Simonsen, L. N. Owen, The Terpenes vol. 2 (Cambridge University Press, London, 2nd ed., 1949) pp 401, 405.
Properties: Crystals from alcohol, benzene, or petr ether, mp 61°. Not very stable and readily assumes yellow color. Volatile with steam. d421.6 1.854. [a]D20 +39.6° (c = 17 in benzene). Practically insol in water; sol in about 5 parts abs alcohol; readily sol in ether, benzene, ethyl acetate, petr ether. uv max (cyclohexane): 323 nm (log e 1.88): Lowry, Owen, J. Chem. Soc. 1926, 606.
Melting point: mp 61°
Optical Rotation: [a]D20 +39.6° (c = 17 in benzene)
Absorption maximum: uv max (cyclohexane): 323 nm (log e 1.88): Lowry, Owen, J. Chem. Soc. 1926, 606
Density: d421.6 1.854
Status: This monograph has been retired and is no longer subject to revision or update.

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