Oxanilic acids, a new series of orally active antiallergic agents
作者:John H. Sellstedt、Charles J. Guinosso、Albert J. Begany、Stanley C. Bell、Marvin Rosenthale
DOI:10.1021/jm00243a014
日期:1975.9
antiallergic activity using the rat passive cutaneous anaphylaxis (PCA) test. Many of the oxanilic acid esters are activeorally, with the most active species having an aryl 2'-carbamoyl group and a 3'-methoxy group. Hydrolysis of the ester from the oxanilic ester moiety causes a loss of oral activity.
Reductive addition to electron-deficient olefins with trivalent iodine compounds
作者:Hideo Togo、Masahiko Aoki、Masataka Yokoyama
DOI:10.1016/s0040-4020(01)88042-x
日期:1993.9
(Diacyloxyiodo)arene was treated with electron-deficientolefins in the presence of hydrogen donor such as 1,4-cyclohexadiene to give the reductive addition products via alkyl radical through the radical decarboxylative pathway in good yields. Moreover, this system was able to generate either alkoxycarbonyl radicals or alkyl radicals with [bis(alkoxyoxalyloxy)iodo]benzene, which was prepared from alcohol
Conversion of Hydroxyl Groups in Alcohols to Other Functional Groups with<i>N</i>-Hydroxy-2-thiopyridone, and Its Application to Dialkylamines and Thiols
作者:Hideo Togo、Misa Fujii、Masataka Yokoyama
DOI:10.1246/bcsj.64.57
日期:1991.1
The radical decarboxylation reaction of N-alkoxyoxalyloxy-2-thiopyridone which was prepared by the reaction of alcohol, oxalyl chloride, and N-hydroxy-2-thiopyridone was studied both in the absence and presence of olefinic compounds. The same reactions with olefinic and acetylenic alcohols gave the corresponding lactone derivatives. On the other hand the unsymmetrical alkyl 2-pyridyl disulfides were obtained by the same reaction with aliphatic thiols.
Design, Synthesis and Insecticidal Activities of Novel<i>N</i>-Oxalyl Derivatives of Neonicotinoid Compound
作者:Yu Zhao、Gang Wang、Yongqiang Li、Suhua Wang、Zhengming Li
DOI:10.1002/cjoc.201090099
日期:2010.1
Ten novel neonicotinoid derivatives containing N‐oxalyl groups were designed and synthesized, and their structures were characterized by 1H NMR, MS, IR, elemental analysis and single crystal X‐ray diffraction analysis. The insecticidal activities of the new compounds were evaluated. The results of bioassays indicated that some of these title compounds exhibited excellent insecticidal activities.
设计并合成了十个含有N-草酰基的新烟碱类衍生物,并通过1 H NMR,MS,IR,元素分析和单晶X射线衍射分析对它们的结构进行了表征。评价了新化合物的杀虫活性。生物测定的结果表明,这些标题化合物中的一些表现出优异的杀虫活性。
Hypoiodite reaction: the decomposition of oxalic acid half-esters
作者:K. Bartel、A. Goosen、A. Scheffer
DOI:10.1039/j39710003766
日期:——
Alkyl half-esters of oxalicacid photolysed with mercury(II) oxide–iodine reagent gave mainly dialkyl oxalates. 1-Apocamphyl hydrogen oxalate gave, in addition to the diester, 1-apocamphyl iodide. 9-Triptycyl hydrogen oxalate gave 9-triptycyl iodoformate, which was thermally decomposed to 9-iodotriptycene and with silver tetrafluoroborate gave 9-triptycyl fluoroformate. We suggest that diester formation