Journal of The Chemical Society C: Organic最新文献_第8页

The photosensitised oxidation of amines. Part IV. The use of aromatic hydrocarbons as sensitisers 胺的光敏氧化第四部分:芳烃作为增敏剂的使用

Journal of The Chemical Society C: Organic Pub Date : 1971-01-01 DOI: 10.1039/J39710003482

R. Bartholomew, D. Brimage, R. Davidson

引用次数: 6

New metabolites of Gibberella fujikuroi. Part XVII. The partial synthesis of gibberellin A15 norketone from 7-hydroxykaurenolide 藤黑赤霉素的新代谢产物。第十七章的一部分。7-羟基丁香烯内酯部分合成赤霉素A15去甲酮

Journal of The Chemical Society C: Organic Pub Date : 1971-01-01 DOI: 10.1039/J39710001539

B. E. Cross, I. Gatfield

引用次数: 2

Heterocyclic studies. Part XV. Synthesis and covalent hydration of pteridine-4-carboxylic acid, -4-carboxamide, and -4-carbonitrile 杂环的研究。十五。蝶啶-4-羧酸、-4-羧胺和-4-碳腈的合成及共价水合反应

Journal of The Chemical Society C: Organic Pub Date : 1971-01-01 DOI: 10.1039/J39710000375

Jim D. Clark, W. Pendergast, F. S. Yates, A. Cunliffe

引用次数: 2

Tetramethyl 2,2,4,4-tetramethoxycarbonylcyclobutane-1,3-dimalonate 四甲基2,2,4,4-tetramethoxycarbonylcyclobutane-1 3-dimalonate

Journal of The Chemical Society C: Organic Pub Date : 1971-01-01 DOI: 10.1039/J39710003679

C. W. Shoppee, N. W. Hughes, S. Sternhell

引用次数: 1

Reaction of trans-1,2-dichloroethylene with phosphorus trichloride–oxygen: the direct formation of a phosphate derivative from an olefin 反式-1,2-二氯乙烯与三氯化磷-氧的反应:烯烃直接生成磷酸盐衍生物

Journal of The Chemical Society C: Organic Pub Date : 1971-01-01 DOI: 10.1039/J39710001613

C. Boyce, S. Webb

引用次数: 1

The action of amines on 1,3,4-oxadiazolium salts 胺对1,3,4-恶二唑盐的作用

Journal of The Chemical Society C: Organic Pub Date : 1971-01-01 DOI: 10.1039/J39710000409

G. V. Boyd, A. Summers

引用次数: 17

Extractives from Guttiferae. Part XXI. The isolation and structure of nine coumarins from the bark of Mammea africana G. Don 木耳属植物提取物。第二十一章。非洲奶妈树皮中9种香豆素的分离与结构研究

Journal of The Chemical Society C: Organic Pub Date : 1971-01-01 DOI: 10.1039/J39710003783

I. Carpenter, E. J. Mcgarry, F. Scheinmann

{"title":"Extractives from Guttiferae. Part XXI. The isolation and structure of nine coumarins from the bark of Mammea africana G. Don","authors":"I. Carpenter, E. J. Mcgarry, F. Scheinmann","doi":"10.1039/J39710003783","DOIUrl":"https://doi.org/10.1039/J39710003783","url":null,"abstract":"Four 4-n-propyl-, one 4-n-pentyl-, and four 4-phenyl-coumarins have been isolated from the bark of Mammea africana G. Don and identified. All are derived from 5,7-dioxygenated coumarins, and eight of the structures contain an isoprene unit and an acyl side chain at either C-6 or C-8. In four cases the isoprene unit exists as a 3-methylbut-2-enyl side chain but otherwise it forms part of a chromen or benzofuran system. The metabolites are 5,7-dihydroxy-6-(3-methylbut-2-enyl)-8-(2-methylbutyryl)-4-n-propylcoumarin (1)(mammea B/BB) 5,7-dihydroxy-8-(3-methylbut-2-enyl)-6-(3-methylbutyryl)-4-phenylcoumarin (5)(mammeisin, mammea A/AA) 5,7-dihydroxy-8-(3-methylbut-2-enyl)-6-(2-methylbutyryl)-4-phenylcoumarin (7)(mammea A/AB, MAB 1), 5,7-dihydroxy-8-(3-methylbut-2-enyl)-6-(2-methylbutyryl)-4-n-propylcoumarin (8)(MAB 2), 4′,5′-dihydro-5-hydroxy-5′-(1-hydroxy-1-methylethyl)-6-(2-methylbutyryl)-4-phenylfuro[2′,3′ : 7,8]coumarin (9)(MAB 3), 4′,5′-dihydro-5-hydroxy-5′-(1-hydroxy-1-methylethyl)-6-(2-methylbutyryl)-4-n-propylfuro[2′,3′ : 7,8]coumarin (10)(MAB 4), 5-hydroxy-6′,6′-dimethyl-6-(2-methylbutyryl)-4-phenylpyrano[2′,3′ : 7,8]coumarin (11)(MAB 5), 5-hydroxy-6′,6′-dimethyl-6-(2-methylbutyryl)-4-n-propylpyrano[2′,3′ : 7,8]coumarin (12)(MAB 6) and 5,7-dihydroxy-8-(2-methylbutyryl)-4-n-pentylcoumarin (13). The structures of the pyranocoumarins have been confirmed by partial synthesis. The possible biogenetic relationship between the coumarins and xanthones in Guttiferae is discussed.","PeriodicalId":17245,"journal":{"name":"Journal of The Chemical Society C: Organic","volume":"22 1","pages":"3783-3790"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90906491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 35

Studies on heterocyclic chemistry. Part VIII. Comparison of the thermally induced reaction of 4-substituted 5-aminoisoxazoles with the decomposition of isoxazoles by arylamine, with reference to a 2H-azirine intermediate 杂环化学研究。八世。4-取代5-氨基异恶唑的热诱导反应与芳胺分解异恶唑的比较，参考2h -氮嘧啶中间体

Journal of The Chemical Society C: Organic Pub Date : 1971-01-01 DOI: 10.1039/J39710002644

T. Nishiwaki, Toshinori Saito, Satoko Onomura, K. Kondo

引用次数: 6

Friedel–Crafts reactions of n-alkenoic acids and ω-chloroalkanoic acids 正烯酸和ω-氯烷酸的Friedel-Crafts反应

Journal of The Chemical Society C: Organic Pub Date : 1971-01-01 DOI: 10.1039/J39710001098

M. Ansell, G. F. Whitfield

引用次数: 2

Diels–Alder reactions of polyfluorocyclohexa-1,3-dienes. Part III. Addition of alkynes, ethylene, and allene to 2H,3H-hexafluorocyclohexa-1,3-diene and reaction of some Diels–Alder adducts of octafluorocyclohexa-1,3-diene with lithium aluminium hydride

Journal of The Chemical Society C: Organic Pub Date : 1971-01-01 DOI: 10.1039/J39710000937

W. Feast, W. Musgrave, R. G. Weston

{"title":"Diels–Alder reactions of polyfluorocyclohexa-1,3-dienes. Part III. Addition of alkynes, ethylene, and allene to 2H,3H-hexafluorocyclohexa-1,3-diene and reaction of some Diels–Alder adducts of octafluorocyclohexa-1,3-diene with lithium aluminium hydride","authors":"W. Feast, W. Musgrave, R. G. Weston","doi":"10.1039/J39710000937","DOIUrl":"https://doi.org/10.1039/J39710000937","url":null,"abstract":"2H,3H-Hexafluorocyclohexa-1,3-diene (10), hexafluoro-2,3-dimethylcyclohexa-1,3-diene (7), and perfluorocyclohexa-1,3-diene (14) react with ethylene by 1,4-addition to give 2,3-disubstituted 1,4,5,5,6,6-hexafluorobicyclo[2,2,2]oct-2-enes (3), (6), and (5) in good yield. Dienes (10) and (14) react with allene to give polyfluoro-5-methylenebicyclo[2,2,2]oct-2-enes (9) and (15). Diene (10) reacts with alkynes to give 2,3-disubstituted 1,4,7,7,8,8-hexafluorobicyclo[2,2,2]octa-2,5-dienes together with poly-addition products. Some of the Diels–Alder adducts of (10) may be more conveniently prepared by reaction of the analogous adducts of (14) with lithium aluminium hydride; however, where trifluoromethyl occurs as a vinylic substituent the products of this reaction are polyfluoro-5-methylenebicyclo[2,2,2]oct-2-enes. Pyrolysis of alkyne adducts (11) and (18) results in the elimination of tetrafluoroethylene to give the expected aromatic product, but pyrolysis of ethylene adducts (3), (5), and (6) results in the elimination of ethylene rather than tetrafluoroethylene and the formation of mixtures of isomeric polyfluorocyclohexa-1,3-dienes.","PeriodicalId":17245,"journal":{"name":"Journal of The Chemical Society C: Organic","volume":"186 1","pages":"937-944"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76618539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5