S-亚硝基环己硫醇 在
air 作用下,
以
氯仿 为溶剂,
反应 0.42h,
以80%的产率得到二环己基二硫化物
参考文献:
名称:
聚乙烯吡咯烷酮(PVP–N 2 O 4)上负载的四氧化二氮:一种新的硫醇亚硝化和偶联剂,以及一种硫化物和二硫化物的选择性氧化剂
摘要:
将气态N 2 O 4固定在聚乙烯吡咯烷酮上,得到稳定的聚合试剂。硫醇转化为小号在使用这个新的亚硝化剂-nitrosothiols(thionitrites)ñ -己烷或氯仿3在10℃下。使用该试剂,硫醇也被转化为其相应的二硫化物。在室温下,也可以通过该试剂将硫化物选择性氧化为亚砜,将二硫化物选择性氧化为硫代磺酸盐。通过使用过量的试剂,在室温下也从硫醇选择性地一锅合成硫代磺酸盐。
Abstract Efficient N‐nitrosation of amines, amides, and ureas, and also S‐nitrosation of thiols were performed with dinitrogentetroxide impregnated on activated charcoal (N2O4/charcoal) in CH2Cl2 at room temperature. High selectivity was observed for N‐nitrosation of dialkyl amines, N‐alkylamides and N‐alkylureas. Dealkylation and N‐nitrosation of trialkylamines were also performed by this reagent
Silica-Acetate Complex of N<sub>2</sub>O<sub>4</sub>: A Heterogeneous Reagent for the Selective Nitration of Phenols and Nitrosation of Thiols
作者:N. Iranpoor、H. Firouzabadi、R. Heydari
DOI:10.1081/scc-120016310
日期:2003.1.4
Abstract Complexation of gaseous N2O4 with acylated silica gel affords an addition compound, which is an efficient heterogeneous reagent for the selective mono- and dinitration of phenol, substituted phenols and nitrosation of thiols.
Silica-Polyethyleneglycols/N 2 O 4 Complexes as Heterogeneous Nitrating and Nitrosating Agents
作者:N. Iranpoor、H. Firouzabadi、R. Heydari
DOI:10.1080/10426500307863
日期:2003.5.1
Silica-chloride was reacted with different quantities of H(OCH 2 CH 2 ) n OH (n = 2-4) to furnish silica-based linear polyethylene glycols and cyclic polyethylene glycolic ethers. The N 2 O 4 complex of silica-tetraethylene glycolic ether ( III ) was selected and used as a stable, cheap, and heterogeneous silica-based reagent for the selective mono- and dinitration of phenols and nitrosation of thiols
氯化硅与不同量的 H(OCH 2 CH 2 ) n OH (n = 2-4) 反应以提供基于二氧化硅的线性聚乙二醇和环状聚乙二醇醚。选择了二氧化硅-四甘醇醚 (III) 的 N 2 O 4 络合物,并将其用作一种稳定、廉价且非均相的二氧化硅基试剂,用于苯酚的选择性单硝化和二硝化以及硫醇的亚硝化。
Efficient Conversion of Thiols to S-Nitrosothiols with the 18-Crown-6 Complex of N2O4 as a New Nitrosating Agent
作者:N. Iranpoor、H. Firouzabadi、R. Heydari
DOI:10.1039/a904784k
日期:——
Gaseous N2O4 reacts with 18-crown-6 to afford a stable ionic complex of NO+·18-crown-6·H(NO3)2–; this complex is an efficient nitrosating agent for the conversion of thiols to their corresponding S-nitrosothiols in different organic solvents.
The reactions between S-nitrosothiols and phosphite esters, including P(OPh)3, P(OBn)3, and P(OEt)3, were studied. Two different conjugated adducts, thiophosphoramidates and phosphorothioates, were formed, depending on the structures of the S-nitrosothiol substrate (e.g., primary vs tertiary). These reactions proceeded under mild conditions, and the reaction mechanisms were studied using experiments