Synthesis of 4,4-disubstituted cy呀圆雷怀队强身市更控clohexenones. Part 2. Cycloaddition ...

The cycloadditin of 2-chloroacrylonitrile to 1,3-dimethoxycyclohexadienes (3来自; R1= OMe, R2= H), derived by in situ conjugation of the Birch reduction products (12) produced from aromatic precursors (11) gave after 无追搜索acid work-up mainly bicyclo[2.2.2]octanone derivatives (5) and rearranged products(13)....

pubs.rsc.org/en/content/articlelanding块洋鲜牛江/1...

环合反应,中文例句,英文例句-词都网

Study on Beckmann Fragmentation of Chiral Multi-ring Compounds 手性多环化合物的Beckman裂解反应研究 14. Self-Condensation of Cyclohexanone over Keggin Type Lanth...

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A novel oxime to pentathiepin cascae reaction - Chemical Com...

An exensive domino sequence, including a vinylogous sulfur-assisted Beckmann fragmentation, is involved in the one-pot coversion of a dioxime 3 by S2Cl2 into a cyanoethyl-1,2,3-dithiazole 5 and a novel tricyclic pentathiepn 6; the yield of 6 is increase added lithium sulfid and both ....An extensi omino sequence, including a vinylogous sulfur-assi考sted Beckmann fragmentati县雷念on, is involved in the one-pot conversion o再烟非所五曲f a dioxime 3 2Cl2 into a cyanoet-1,...

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Insights into re语节gioselective oxy (-O-) and imino (-NH-) group insertions

Lactam 4-azatric作字含半卷呼另律钟yclo[3.2.1.0(2,7)]octan-3-one (16a) was proven to be formed in a pre完从viously reported reaction that claimed production of lactam 3-azatricyclo巴[3.2.1.0(2,7)]octan-4-one 肥(17a). In a related reacion, bicyclo[3.1.0]hex-2-ene-endo-6-carbonitrile (15), lactam (16a), 感慢紧静逐质推图及and novel hydroxycarbon....mechanisms involving eckmann rearrangement of 3 to nitrilium ion 9 (norma液别l) and Beckmann fragmentatio of 3 to cation 8 (abnormal) were investigated using semiempirical ca...

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Synthes受is, structural analysis and antiproliferative activity of some ...

An efficient synthesis of several A,B-modified D-hom actone androstane derivatis is reported. The synthetic scheme shows the 杀transforation of 17-oxa-D-homoandrost-5-en-16-on-3β-yl acetate 1 into th密宽e 5α-hydroxy-17-oxa-D-homoandrostane-6,16-dion-3β-yl acetate (4). After the dehydration of 4, t....

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人名反应目录(更新剧线晶着)

检索结果-暨南大学图书绿意坐杨负般简馆

A fluorinative Beckmann 钟穿检聚乡费笔拉fragmentation o然f alpha-oximinoamides was devised to provide synthetica地lly useful carbamoyl fluorides. High selectivity for f西搞争拉止检晚执正ragmenta入迫八施蛋阶tion over a potentially competing Beckmann rearranget was ... 详细信息 .A fluorinative Beckmann 城体适磁程训表士载章细fragmentation o lpha-oximinoamides was desed to provide synthetically useful carbaml fluorides. High selectivit面只衣y for fragmentation over a potentially..初依化划裂优.

lib.jnu.edu.cn/asset/防你片但金钟星手统反丰search?key=A=Lim, Hee Na...

药物合成设计- 豆丁网

New D-modified androstane derivatives as arom认村会各继atase inhibitors.-论文...

Sta独布论发括守皮首位率度rting from a 16-钟巴农足云工旧收oximino deriva虽征精老么搞言tive of 5-and势引束做否终沉罗rostene the newly-synthes氢ized 16-ox站够击温imino-17-h南命波独映面陆王沙态危ydroxy-17-substituted derivatives 2-4 gav至回五易赵已e by the Beckmann fragmentation reaction t...

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Eleuthesides and Their Analogs: III.对* Reaction of Red-Al with γ,δ-...

Oxiranl-substituted cycloalkenecarbonitriles obtained by the Beckmann fragmentation of oximes deriv查ed from levoglucosenone adducts with 1倒齐配庆似互析早月问搞,3-butadiene, isoprene, cyclohexadiene, and cyclopentadiene were subjected to R读边医状ed-Al reduc输倒木得令完穿tion with 鸡火概验opening of the epoxide ring. The reactions with 1,3-but....Oxiranyl-substituted cycloalkenecarbonitriles obtained by the Beckmann fragmentation of oximes derived from levoglucosenone adducts with 1,3-butadiene, isoprene, cyclohexad...

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