From Wikipedia, the free encyclopedia
Other names
3D model (JSmol)
  • InChI=1S/C4H9.Na/c1-3-4-2;/h1,3-4H2,2H3;
  • CCC[CH2].[Na]
Molar mass 80.106 g·mol−1
Appearance white solid[1]
GHS labelling:
GHS02: Flammable GHS07: Exclamation mark
Related compounds
Related compounds
n-Butylpotassium n-Butyllithium
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

n-Butylsodium CH3CH2CH2CH2Na is an organometallic compound with the idealized formula NaC4H9. Like other simple organosodium compounds, it is polymeric and highly basic.[2] In contrast to n-butyllithium, n-butylsodium is only of specialized academic interest.


n-Butylsodium is prepared from n-butyllithium and t-butoxysodium.[2]


In n-Butylsodium, the Na-C bond has ionic character, with a negative charge on the end carbon atom. n-Butylsodium is insoluble in saturated hydrocarbons. It reacts with unsaturated hydrocarbons.[3] Soluble adducts are produced with Lewis bases such as tetramethylethylenediamine or tetrahydrofuran.[2]


n-Butylsodium reacts with alkylbenzene or allylbenzene compounds to give new organosodium compounds. With toluene the major product is benzylsodium.[4]

n-Butylsodium reacts with 1-bromonaphthalene to make 1-sodiumnapthalene and 1-bromobutane,[5] but there are few such metathesis reactions.[6]


  1. ^ Martinez-Martinez, A. J.; Kennedy, A. R.; Mulvey, R. E.; O'Hara, C. T. (13 November 2014). "Supplementary Material for Directed ortho-meta'- and meta-meta'-dimetalations: A template base approach to deprotonation". Science. 346 (6211): 834–837. Bibcode:2014Sci...346..834M. doi:10.1126/science.1259662. PMID 25395533. S2CID 206561570.
  2. ^ a b c Schade, Christian; Bauer, Walter; Von Ragué Schleyer, Paul (November 1985). "n-Butylsodium: The preparation, properties and NMR spectra of a hydrocarbon- and tetrahydrofuran-soluble reagent". Journal of Organometallic Chemistry. 295 (3): c25–c28. doi:10.1016/0022-328X(85)80326-0.
  3. ^ Coates, G. E. (2012). Principles of Organometallic Chemistry. Springer Science & Business Media. p. 50. ISBN 9789401096812.
  4. ^ Broaddus, C. D. (September 1966). "Metalation of Toluene. The Question of Kinetic vs. Thermodynamic Control". Journal of the American Chemical Society. 88 (18): 4174–4178. doi:10.1021/ja00970a012.
  5. ^ Gilman, Henry; Moore, Fred W.; Baine, Ogden (September 1941). "Secondary and Tertiary Alkyllithium Compounds and Some Interconversion Reactions with Them". Journal of the American Chemical Society. 63 (9): 2479–2482. doi:10.1021/ja01854a046.
  6. ^ Schlosser, M. (April 1964). "Organosodium and Organopotassium Compounds Part I: Properties and Reactions" (PDF). Angewandte Chemie International Edition in English. 3 (4): 287–306. doi:10.1002/anie.196402871.