Cationic Micelle-catalyzed Ring-Opening Reactions of Aziridines with Thiols in Water
作者:Min Yang、Qin Yang、Puqing Chen、Yiyuan Peng
DOI:10.1002/cjoc.201190112
日期:2011.3
An efficient and practical method is described for the ring‐opening reactions of N‐tosylaziridines with various thiols in water under mild conditions. Various surfactants have been evaluated to optimize the reactions. Under optimal conditions, these reactions gave rise to the corresponding β‐amino sulfides in good to excellent yields.
Pyridine-N-oxide: An Efficient Organocatalyst for Ring-Opening Reactions of Aziridines with Aryl Thiols
作者:Qin Yang、Zhenlan Yin、Min Yang、Yiyuan Peng
DOI:10.1002/cjoc.201190064
日期:2011.1
Pyridine‐N‐oxide serves as an efficient catalyst for the ring‐opening reactions of N‐tosylaziridines with various aryl thiols under mild conditions. This transformation is highly effective, which gives rise to the corresponding β‐amino sulfides in good to excellent yields.
Polyethylene glycol (PEG) as an efficient recyclable medium for the synthesis of β-amino sulfides
作者:Ahmed Kamal、D. Rajasekhar Reddy、Rajendar
DOI:10.1016/j.tetlet.2006.01.086
日期:2006.3
Aziridines undergo ring opening readily with various thiols in the presence of polyethyleneglycol (PEG) to afford the corresponding β-amino sulfides in high yields with good regioselectivity under mild and neutral conditions. The PEG can be recovered and reused.
straightforward and general way to synthesize various β-sulfonylamino sulfides with high regio- and diastereoselectivity. The developed method was coupled with intramolecular C–N coupling in a one-pot procedure to afford a series of dihydrobenzothiazine derivatives, a kind of important heterocycle used as biologically active compounds in medicinal chemistry.