私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

當前位置:> 首頁 > 論文著作 > 正文
Preparation of polystyrene-supported N-phenyl-N-acyl sulfonamide resin in solution-phase synthesis of amides
作者:Shu-feng Li, Wenqiang Huang, Xin-lin Yang, Jian-zhong Ye
關鍵字:Acylated sulfonamide resin, N-phenyl sulfonamide resin, N-phenyl-N-acyl sulfonamide resin, acyl transfer, amide
論文來源:期刊
具體來源:J. Macromol. Sci. Part A: Pure Appl. Chem., 48 (9), 701-706 (2011). DOI: 10.1080/10601325.2011/59604
發表時間:2011年
Polystyrene-supported N-phenyl-N-acyl sulfonamide resin was prepared by reacting polystyrene sulfonyl chloride resin with aniline and acylating in pyridine with either acid chlorides or anhydrides. Then, this resin was utilized as a new type of acyl transfer reagent
to synthesize the amide library. It was approved to be a more effective acyl transfer reagent with higher amide yields than the polystyrene-supported N-methyl-N-acyl sulfonamide resin and N-benzyl-N-acyl sulfonamide resin. When the phenyl group bonded to the N atom on N-phenyl-N-acyl sulfonamide resin was substituted by the electron withdrawing group or electron donating group, a decreasing amide yield was obtained. N-phenyl-N-acyl sulfonamide resin could be regenerated many times
主站蜘蛛池模板: 石景山区| 龙里县| 达尔| 平利县| 大悟县| 旬邑县| 巴彦县| 平江县| 吴忠市| 安西县| 淳化县| 永德县| 鹤庆县| 淳安县| 黑山县| 永泰县| 青龙| 西和县| 齐河县| 东城区| 嘉祥县| 承德市| 许昌县| 禄丰县| 同德县| 西乡县| 龙川县| 吉木乃县| 泌阳县| 湘潭县| 平顶山市| 监利县| 长岛县| 扶余县| 玉龙| 宜丰县| 曲周县| 易门县| 鹤峰县| 新河县| 安陆市|