- KI-catalyzed C-S bond formation: Via an oxidation relay strategy: Efficient access to various α-thio-β-dicarbonyl compounds
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An efficient and practical methodology to obtain α-thio-β-dicarbonyl compounds was presented under alkaline conditions via potassium iodide (KI) catalysis; various symmetrical/unsymmetrical 1,3-dicarbonyl compounds were obtained under an aerobic atmospher
- Jiang, Yi,Zou, Jiao-Xia,Huang, Long-Tao,Peng, Xue,Deng, Jie-Dan,Zhu, Long-Qing,Yang, Yu-Hang,Feng, Yi-Yue,Zhang, Xiao-Yun,Wang, Zhen
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supporting information
p. 1641 - 1645
(2018/03/21)
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- Regioselective Mono- and Bis-Sulfenylation of Active Methylene Compounds
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Selective mono- and bis-sulfenylation of active methylene groups with a variety of disulfides at an ambient temperature is reported. Sulfenylation is promoted by iodine as a catalyst and sulfenyl iodides as intermediates, under metal-free conditions. The
- Devi, Namita,Rahaman, Rajjakfur,Sarma, Kuladip,Barman, Pranjit
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supporting information
p. 384 - 388
(2016/02/18)
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- Rhodium-catalyzed arylthiolation reaction of nitroalkanes, diethyl malonate, and 1,2-diphenylethanone with diaryl disulfides: Control of disfavored equilibrium reaction
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In the presence of catalytic amounts of RhH(PPh3)4 and 1,2-bis(diphenylphosphino)ethane (dppe), 1-nitroalkanes reacted with a diaryl disulfide giving 1-arylthio-1-nitroalkanes in air. The equilibrium to form thermodynamically disfavored products was shifted by the rhodium-catalyzed oxidation of thiols to disulfides and water. The thiolation reaction of cyclic nitroalkanes proceeded in high yields provided that suitable diaryl disulfides were employed depending on the substrate: di(p-chlorophenyl) disulfide was used for the thiolation reaction of 1-nitroalkanes, 1-nitrocyclopentane and 1-nitrocycloheptane with acidic α-protons (pKa 16 and 17); di(p-methoxyphenyl) disulfide for 1-nitrocyclobutane and 1-nitrocyclohexane with less acidic α-protons (pKa ca. 18). Related reactivities were observed in the thiolation reactions of malonate and 1,2-diphenylethanone.
- Arisawa, Mieko,Nihei, Yuri,Yamaguchi, Masahiko
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supporting information
p. 5729 - 5732
(2012/11/06)
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- Conformational Analysis of 5-Subtituted 1,3-Dioxanes. 2. Phenylthio and Cyclohexylthio groups and their Sulfinyl and Sulfonyl Derivatives
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The positions of equilibrium, established by acid catalysis, between diastereomeric cis- and trans-5-(phenylthio)- (7), 5-(phenylsulfinyl)- (8),5-(phenylsulfonyl)- (9), 5-(cyclohexylthio)- (10), 5-(cyclohexylsulfinyl)- (11), and 5-(cyclohexylsulfonyl)-2-t
- Juaristi, Eusebio,Gordillo, Barbara,Sabahi, Mahmood,Glass, Richard S.
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- On the Control of Sulphenylations at Carbon
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Controlled monosulphenylation at carbon adjacent to electron-withdrawing groups can be achieved by the controlled reduction of readily available bis-sulphenylated products.
- Grossert, J. Stuart,Dubey, Pramod K.
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p. 1183 - 1184
(2007/10/02)
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