N.m.r. isotropic shifts of the CH2 group of europium oxaloacetates provide spectral evidence for the formation of the α-oxocarboxylate complex between oxaloacetic acid and metal ions in aqueous solution.
{"title":"Nuclear magnetic resonance isotropic shifts of europium oxaloacetates","authors":"C. Reyes-Zamora, C. Tsai","doi":"10.1039/C29710001047","DOIUrl":"https://doi.org/10.1039/C29710001047","url":null,"abstract":"N.m.r. isotropic shifts of the CH2 group of europium oxaloacetates provide spectral evidence for the formation of the α-oxocarboxylate complex between oxaloacetic acid and metal ions in aqueous solution.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"24 1","pages":"1047-1047"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85491573","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}
D. Jeremić, S. Milosavljevic, V. Andrejević, M. Jakovljević-Marinković, Ẑ. Čeković, M. Mihailović
The use of α-deuteriated substrates has established that in the lead tetra-acetate oxidation of certain secondary alicyclic and open-chain alcohols, ketone formation proceeds, in part, by 1,4-transfer of hydrogen from the carbinol (α) carbon atom to the δ-carbon atom.
{"title":"1,4-Shift of hydrogen from carbon to carbon in the lead tetra-acetate oxidation of monocyclic and acyclic alcohols","authors":"D. Jeremić, S. Milosavljevic, V. Andrejević, M. Jakovljević-Marinković, Ẑ. Čeković, M. Mihailović","doi":"10.1039/C29710001612","DOIUrl":"https://doi.org/10.1039/C29710001612","url":null,"abstract":"The use of α-deuteriated substrates has established that in the lead tetra-acetate oxidation of certain secondary alicyclic and open-chain alcohols, ketone formation proceeds, in part, by 1,4-transfer of hydrogen from the carbinol (α) carbon atom to the δ-carbon atom.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"223 1","pages":"1612-1613"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85930162","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}
The structures of a delocalised pseudo-π-allylic (three electron)π-oxopropyl manganese tricarbonyl complex (A) and a σ-bonded Mn–C oxobutyl tricarbonyl complex (B) have been determined by three-dimensional X-ray structural analysis.
{"title":"Crystal structures of two organo-manganese complexes formed by acetyl migration to a co-ordinated double bond","authors":"M. Bennett, G. B. Robertson, R. Watt, P. Whimp","doi":"10.1039/C29710000752","DOIUrl":"https://doi.org/10.1039/C29710000752","url":null,"abstract":"The structures of a delocalised pseudo-π-allylic (three electron)π-oxopropyl manganese tricarbonyl complex (A) and a σ-bonded Mn–C oxobutyl tricarbonyl complex (B) have been determined by three-dimensional X-ray structural analysis.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"333 1","pages":"752-753"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76598084","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}
The structure and absolute stereochemistry of evertetrose and everninonitrose, two degradation products of everninomicin “D”, have been established.
建立了伊维菌素“D”的两种降解产物——伊维菌素葡萄糖和伊维菌素硝基糖的结构和绝对立体化学。
{"title":"Structure of evertetrose and everninonitrose","authors":"A. Ganguly, O. Sarre, S. Szmulewicz","doi":"10.1039/C29710000746","DOIUrl":"https://doi.org/10.1039/C29710000746","url":null,"abstract":"The structure and absolute stereochemistry of evertetrose and everninonitrose, two degradation products of everninomicin “D”, have been established.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"406 1","pages":"746-746"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76709776","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}
Proton-decoupled natural-abundance carbon-13 Fourier transform n.m.r. spectra of aqueous solutions of aquocyanocobyric acid and dicyanocobyric acid were recorded at 15·08 MHz: the spectrum of the first compound showed the presence of two isomers, and many of the carbon atoms showed large chemical shift variations between the two isomers.
{"title":"Direct observation of the two forms of aquocyanocobyric acid in water by carbon-13 Fourier transform nuclear magnetic resonance","authors":"D. Doddrell, A. Allerhand","doi":"10.1039/C29710000728","DOIUrl":"https://doi.org/10.1039/C29710000728","url":null,"abstract":"Proton-decoupled natural-abundance carbon-13 Fourier transform n.m.r. spectra of aqueous solutions of aquocyanocobyric acid and dicyanocobyric acid were recorded at 15·08 MHz: the spectrum of the first compound showed the presence of two isomers, and many of the carbon atoms showed large chemical shift variations between the two isomers.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"64 1","pages":"728-729"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76863200","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}
The synthesis of a new stereospecific amino-acid cis,cis-1,3,5-triaminocyclohexane-NN′N″-triacetic acid and its cobalt(III) complex are reported.
报道了一种新型立体定向氨基酸顺式,顺式-1,3,5-三氨基环己烷- nn 'N″-三乙酸及其钴(III)配合物的合成。
{"title":"The synthesis of cis,cis-1,3,5-triaminocyclohexane-NN′N′-triacetic acid and its cobalt(III) complex","authors":"L. J. Zompa, J. Shindler","doi":"10.1039/C2971000065B","DOIUrl":"https://doi.org/10.1039/C2971000065B","url":null,"abstract":"The synthesis of a new stereospecific amino-acid cis,cis-1,3,5-triaminocyclohexane-NN′N″-triacetic acid and its cobalt(III) complex are reported.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76872277","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}
Y. Kuo, Francis. Chen, C. Ainsworth, J. Bloomfield
Alkali-metal reduction of disubstituted malonates or treatment of esters with base in the presence of trimethylchlorosilane gives high yields of the reactive disubstituted keten alkyl trimethylsilyl acetals, while diethyl oxalate, under similar conditions is reduced to 1,2-diethyl-1,2-bis(trimethylsilyloxy)ethylene.
{"title":"Metal reductions of malonates and oxalates. A covenient decarboxylation route for disubstituted malonates and synthesis of keten acetals","authors":"Y. Kuo, Francis. Chen, C. Ainsworth, J. Bloomfield","doi":"10.1039/C29710000136","DOIUrl":"https://doi.org/10.1039/C29710000136","url":null,"abstract":"Alkali-metal reduction of disubstituted malonates or treatment of esters with base in the presence of trimethylchlorosilane gives high yields of the reactive disubstituted keten alkyl trimethylsilyl acetals, while diethyl oxalate, under similar conditions is reduced to 1,2-diethyl-1,2-bis(trimethylsilyloxy)ethylene.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"1 1","pages":"136-137"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77010295","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}
The new compound Hg62+(AsF6–)2 containing mercury in the previously unknown oxidation state of +⅓ has been obtained by the reaction of mercury with arsenic pentafluoride in liquid SO2.
{"title":"The +⅓ oxidation state of mercury","authors":"R. Gillespie, P. Ummat","doi":"10.1039/C2971001168A","DOIUrl":"https://doi.org/10.1039/C2971001168A","url":null,"abstract":"The new compound Hg62+(AsF6–)2 containing mercury in the previously unknown oxidation state of +⅓ has been obtained by the reaction of mercury with arsenic pentafluoride in liquid SO2.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77142048","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}
{"title":"Sisomicin: stereochemistry and attachment of the unsaturated sugar moiety","authors":"H. Reimann, R. Jaret, D. Cooper","doi":"10.1039/C29710000924","DOIUrl":"https://doi.org/10.1039/C29710000924","url":null,"abstract":"","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"517 1","pages":"924-925"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77143110","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}
Crystal structure determination of (NH4)6Au3Ag2Cl17 has shown that it contains the anions AuCl4– and the hitherto unreported Ag2Cl53–, the ions being so arranged that intervalence exchange occurs between them.
{"title":"The crystal and molecular structure of Pollards salt, (NH4)6(AuCl4)3Ag2Cl5","authors":"J. Bowles, D. Hall","doi":"10.1039/C29710001523","DOIUrl":"https://doi.org/10.1039/C29710001523","url":null,"abstract":"Crystal structure determination of (NH4)6Au3Ag2Cl17 has shown that it contains the anions AuCl4– and the hitherto unreported Ag2Cl53–, the ions being so arranged that intervalence exchange occurs between them.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"26 1","pages":"1523-1523"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77223706","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}