Use of hammett graphs in stability programs
✍ Scribed by J. Thurø Carstensen; E. G. Serenson; J. J. Vance
- Publisher
- John Wiley and Sons
- Year
- 1964
- Tongue
- English
- Weight
- 156 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0022-3549
No coin nor oath required. For personal study only.
✦ Synopsis
stirring for 80 hours. The reaction complex was hydrolyzed by dropwise addition with vigorous stirring of 28.8 ml. of water, followed by 39.5 ml. of concentrated hydrochloric acid. The ether tiltrate was evaporated to give 10.5 Gm. of an oily semisolid. Repeated recrystallization of this residue from mixtures of benzene and petroleum ether gave 2 Gm. of white crystals. m.p. 69-70'.
Chemical analysis indicated that this compound was benzyl disulfide. Comparison to an authentic specimen showed identical infrared spectrum and no depression of melting point.
In a subsequent identical run, during the evaporation of the ether solution to dryness, the escaping gases were passed through a trap containing hydrochloric acid. Evaporation of the solution from this trap left a residue of 4.5 Gm., m.p. 95-105'.
Re-1547 crystallization from ethanol-ether mixtures gave 2.5 Gm. (28%) of ethylamine hydrochloride, m.p. 108-109'. This is in agreement with the known melting point of 109" (5). Conversion to the benzamide derivative gave a product which melted a t 68-69O, in agreement with the previously reported melting point for N-ethylbenzamide of 69' (ti).
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