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- W2621101260 abstract "Thermal reactions of quinolyl-substituted thiophenes (2-(8′-quinolyl)thiophene (QT), 2-methyl-5-(8′-quinolyl)thiophene (MeQT), 2-(8′-quinolyl)-5-(trimethylsilyl)thiophene (TMSQT)) with [Fe3(CO)12] gave the corresponding thiolate-bridged diiron complexes [Fe2(μ-LR)(CO)5] (R = H, Me, SiMe3), where LH, LMe, and LTMS are dianionic N,C,S-tridentate ligands (SC(R)CHCHC(Q)2–, Q = 8-quinolyl) formed by the oxidative addition of the C–S bond in QT, MeQT, and TMSQT, respectively. In contrast, the formation of photoreaction products of the quinolyl-substituted thiophenes with [Fe(CO)5] was dependent on the R group of the thiophene ring. The photoreaction of QT gave the sulfur-free diiron complex [Fe2{CHCHCHC(Q)}(CO)5], whereas the photoreactions of MeQT and TMSQT gave the thiolate-bridged triiron complex [Fe3(μ-LMe)(CO)8] and diiron complex [Fe2(μ-LTMS)(CO)5], respectively, as the major products. In the triiron complexes [Fe3(μ-LR)(CO)8], an Fe(CO)3 unit is bound to the C(R)CHCH moiety in the S-metallacycle of the diiron complexes [Fe2(μ-LR)(CO)5]. The difference in the photoreaction products is described on the basis of the reactivity of the thiolate complexes [Fe2(μ-LR)(CO)5] and [Fe3(μ-LR)(CO)8]. Although the photoreactions of the diiron complexes [Fe2(μ-LR)(CO)5] with [Fe(CO)5] produced the corresponding triiron complexes [Fe3(μ-LR)(CO)8], desulfurization leading to the formation of [Fe2{CHCHCHC(Q)}(CO)5] was predominant for R = H, and a fast conversion of the triiron complex to a CO elimination product was observed for R = SiMe3." @default.
- W2621101260 created "2017-06-09" @default.
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- W2621101260 date "2017-06-01" @default.
- W2621101260 modified "2023-09-25" @default.
- W2621101260 title "Carbon–Sulfur Bond Cleavage Reactions of Quinolyl-Substituted Thiophenes with Iron Carbonyls" @default.
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- W2621101260 doi "https://doi.org/10.1021/acs.organomet.7b00280" @default.
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