Abstract The structural properties and radical scavenging activity of 2,6-dimethyl-5-hepten-2-ol ( 1 ) and its new heterocyclic analogues, i.e. 2-methyl-4-(5-methylfuran-2-yl)-butan-2-ol ( 2 ) and 2-methyl-4-(5-methylthiophen-2-yl)-butan-2-ol ( 3 ) and have been studied by using the experimental and theoretical methods for the first time. Activity of title compounds against the peroxyl radical was
2,6‐Dimethyl‐7,8‐dihydro‐4H‐cyclohepta[b]furan and 2,6‐dimethyl‐7,8‐dihydro‐4H‐cyclohepta[b]thiophene were prepared by direct cyclization of 3‐methyl‐5‐(5‐methylfuran‐2‐yl)‐pent‐1‐en‐3‐ol and 3‐methyl‐5‐(5‐methyltiophen‐2‐yl)‐pent‐1‐en‐3‐ol, respectively. J. Heterocyclic Chem., (2009).
2,6-二甲基- 7,8-二氢-4- ħ -环庚[ b ]呋喃和2,6-二甲基-7,8-二氢-4- ħ -环庚[ b ]噻吩通过3-甲基的直接环化来制备分别和3-甲基-5-(5- methyltiophen -2-基) -戊-1-烯-3-醇,-5-(5-甲基呋喃-2-基) -烯-3-醇-戊-1- 。J.杂环化学,(2009)。
Rhodium-Catalyzed Conjugate Addition of Sb-Aryl-1,5-azastibocines to α,β-Unsaturated Carbonyl Compounds
作者:Jyoji Kurita、Naoki Kakusawa、Shuji Yasuike
DOI:10.3987/com-08-s(f)113
日期:——
Rhodium-catalyzed conjugate addition of Sb-aryl-1,5-azastibocines to alpha,beta-unsaturated carbonyl compounds is described. The rhodium-catalyzed reaction was carried out in aqueous N-methy-2-pyrrolidinone (NMP) to give 1,4-conjugate adduct exclusively, while the palladium catalyzed reaction gave only Heck-type adduct. The 1,4-addition of various aryl groups such as substituted benzenes and thiophenes was achieved with various Crones and enoates.
Heterobimetallic Pd–Sn Catalysis: Michael Addition Reaction with C-, N-, O-, and S-Nucleophiles and in Situ Diagnostics
作者:Debjit Das、Sanjay Pratihar、Sujit Roy
DOI:10.1021/jo302643v
日期:2013.3.15
An efficient Michael addition reaction of differently substituted enones with carbon, sulfur, oxygen, and nitrogen nucleophiles has been achieved by a new heterobimetallic "Pd-Sn" catalyst system. The nature of the catalytically relevant species and their interactions with the enone moiety has been examined by spectroscopy. The effect of ligand and the coordination mode of enone with "Pd-Sn" heterobimetallic system have been investigated by kinetics and DFT studies. A straightforward application of this methodology is shown in the synthesis of 1,4-oxathiepane core.
Kharchenko, V. G.; Markushina, I. A.; Gubina, T. I., Doklady Chemistry, 1980, vol. 255, p. 601 - 602
作者:Kharchenko, V. G.、Markushina, I. A.、Gubina, T. I.