论文信息 - 3‐Methyl‐3‐buten‐1‐ynylcopper(I)

3‐Methyl‐3‐buten‐1‐ynylcopper(I)

[56964-06-8] C5H5Cu (MW 128.65) InChI = 1S/C5H5.Cu/c1-4-5(2)3;/h2H2,3H3; InChIKey = OMFVEGMYPBCISH-UHFFFAOYSA-N (coupling agent for introduction of the isopropenyl group;2 nucleophilic species which effects decarbonylative ring contraction of bicyclic lactones3) Alternate Name: copper(I) isoprenylacetylide. Physical Data: bright yellow solid; mp 120–200 °C (dec);2 IR (KBr) 3095, 3003, 2970, 2921, 1932, 1603, 1440, 1428, 1380, 1363, 1255, 895, 878, 709, 552, 525 cm−1.4 Solubility: sol pyridine, DMF, ethanol; insol water. Preparative Method: Hydroxylamine hydrochloride reduction of Copper(II) Sulfate in aq ammonium hydroxide followed by addition of isopropenylacetylene in ethanol.2 Drying: solid dried under P2O5 in vacuo. Handling, Storage, and Precautions: all solid copper(I) acetylides are potentially explosive. Use in a fume hood.

Graham B Jones | Brant J. Chapman

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