A new chelating fiber containing thioamide group is synthesized by cross-linking of polyacrylonitrile fiber with ethylene-dimine and following with chemical modification with sodium sulfide using DMF as solvent.

以腈綸纖維為起始原料欧美视频欧美性爱，經(jīng)乙二胺預交聯(lián)后亚洲欧美另类图片区，以DMF作溶劑與硫化鈉反應欧洲性爱精品图片，合成了一種硫代酰胺功能基可達6.8mmol/g干纖維的螯合功能纖維把腿扒开做爽爽视频APP，其對貴金屬金免费人城网站在线观看、銀離子具有良好的吸附性能欧美激情偷乱人伦小说视。

Thioamide was refluxed with sodium hypophosphite and ppt-Ni prepared beforehand from NiCl〓·6H〓O and Zn powder in a mixture of dioxane and water to give amines in 60-98% yields (12 examples).

催化劑Ni-Zn是用氯化鎳和鋅粉反應制成，為合金型固體粉末露出在线，次磷酸鈉作為氫供體自拍偷拍网页，對12種硫代酰胺進行脫硫還原，收率60-98%一级片高清无码在线观看不卡。

Methods 4-Hydroxy- benzonitrile was treated with sodium hydrogen sulfide and anhydrous magnesium chloride in dimethyl formamide to give thioamide, which was then directly cyclized with ethyl 2-chloroacetoacetate without separation to give ethyl 2-(4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(2) in one-pot; then 2 was formylated with Duff reaction adopting hexamethylenetetramine in trifluoroacetic acid to give ethyl 2-(3-formyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(3); finally, the target compound was obtained by the treatment of 3 with hydroxylamine hydrochloride and sodium formate in formic acid.

采用&一勺燴&方法三级黄毛，以4-羥基苯甲腈為起始原料先锋影音最新资源网站，首先與硫氫化鈉和無水氯化鎂在N，N-二甲基甲酰胺中反應视频91自拍，所得中間體不經(jīng)分離av网站在线管看，直接加入2-氯乙酰乙酸乙酯進行環(huán)合反應，得到2-(4-羥基)苯基-4-甲基-5-噻唑甲酸乙酯（2）xx性爱视屏；然后通過六亞甲基四胺/三氟乙酸進行Duff反應少妇高潮太爽了在线观看，得到2-(3-甲酰基-4-羥基)苯基-4-甲基-5-噻唑甲酸乙酯（3）在线观看中文字幕在线；再經(jīng)鹽酸羥胺/甲酸/甲酸鈉體系脫水得到目標化合物毛片基地久久伊人91x32.cc。

thioamide：硫代酰胺

thioaldehyde 乙硫醛 | thioamide 硫代酰胺 | thiocarbamide 硫脲

thioamide：硫醯胺

thioaldehyde 硫醛 | thioamide 硫醯胺 | thioantimonate 硫銻酸鹽