The selective functionalization of saturated hydrocarbons. Part 45. The effect of lower temperature on the rate and efficiency of formation of oxidized products in the FeIII-FeV and FeII-FeIV manifolds
β Scribed by Derek H.R. Barton; Tingsheng Li; Eric Peralez
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- French
- Weight
- 480 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0040-4020
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β¦ Synopsis
In the Fem-Fe v manifold the formation of the iron-carbon bond was found to be very fast, but the evolution to give ketone was slow at -20 *C and -40 *C. However, the efficiency at the latter temperature was good. The iron-carbon bond can be captured rapidly by I" or by PhSeH. We have confirmed that either way to measure the iron-carbon bond ~i,'ves essentially the same results. In contrast to the Fem-Fe v manifold the o fl tv reactions at -20 C in the Fe -Fe manifold are very fast for both iron-carbon bond formation and evolution to final products. In this manifold the reactions at -20 Β°C are more efficient than those at -5 *C.
π SIMILAR VOLUMES
The selective functionalization of alkane was achieved in a good yield. by a simple Fe"Clz salt and bis(trimethylsily1) peroxide in pyridine. Unlike the Fen-HZ02 system, no extra ligand was needed. The presence of a carbon radical from the Fen-Few manifold was proposed to explain the results.