| Chemical Properties | white to yellowish low melting crystalline mass |
| Synthesis Reference(s) | Journal of the American Chemical Society, 102, p. 7629, 1980 DOI: 10.1021/ja00546a001
The Journal of Organic Chemistry, 21, p. 965, 1956
Tetrahedron Letters, 28, p. 2829, 1987 DOI: 10.1016/S0040-4039(00)96220-8 |
| Purification Methods | Purify it by repeated fractional distillation.[Cowley J Org Chem 23 1330 1958, Reppe et al. Justus Liebigs Ann Chem 596 198 1955, IR: Huisgen et al. Chem Ber 90 1437 1957.] The hydrochloride has m 183-184o (from isoPrOH or EtOH/Et2O) [Hurd et al. J Org Chem 17 865 1952], and the oxime has m 122.5o (from pet ether) [Behringer & Meier Justus Liebigs Ann Chem 607 67 1957]. The picrate has m 92-93o. [Beilstein 21 H 239, 21 III/IV 3170, 21/6 V 396.] |
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1.Cooperate with research institutions, we strictly control the process from raw material to finished product.
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