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Synthesis and X-ray crystal structure of (1S,3R,4S,1′S)-4-methyl-3-triphenyl-pnosphonium-1-[1′-methyl(methyiphenyl)]-2-hydrido-2-borazetidinium bromide—the first example of a four-membered C–B–N–C heterocycle (1S,3R,4S, 1S)-4-甲基-3-三苯基-膦-1-[1 ' -甲基(甲苯基)]-2-羟基-2-硼氮杂环的合成及x射线晶体结构
Journal of The Chemical Society, Chemical Communications Pub Date : 1995-01-01 DOI: 10.1039/C39950000287
B. Booth, N. Lawrence, R. Pritchard, Humayan S. Rashid
{"title":"Synthesis and X-ray crystal structure of (1S,3R,4S,1′S)-4-methyl-3-triphenyl-pnosphonium-1-[1′-methyl(methyiphenyl)]-2-hydrido-2-borazetidinium bromide—the first example of a four-membered C–B–N–C heterocycle","authors":"B. Booth, N. Lawrence, R. Pritchard, Humayan S. Rashid","doi":"10.1039/C39950000287","DOIUrl":"https://doi.org/10.1039/C39950000287","url":null,"abstract":"The title compound and related derivatives are synthesised from enamino(triphenyl)phosphonium salts and borane, and converted into β-aminophosphonium salts and β-aminophosphine oxides containing two chiral centres.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":"71 1","pages":"287-289"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80417069","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: 2
Functionalisation of [Mo6O19]2– with aromatic amines: synthesis and structure of a hexamolybdate building block with linear difunctionality [Mo6O19]2 -与芳香胺的功能化:具有线性二官能性的六钼酸盐构建块的合成和结构
Journal of The Chemical Society, Chemical Communications Pub Date : 1995-01-01 DOI: 10.1039/C39950000455
W. Clegg, R. Errington, K. Fraser, S. Holmes, A. Schäfer
{"title":"Functionalisation of [Mo6O19]2– with aromatic amines: synthesis and structure of a hexamolybdate building block with linear difunctionality","authors":"W. Clegg, R. Errington, K. Fraser, S. Holmes, A. Schäfer","doi":"10.1039/C39950000455","DOIUrl":"https://doi.org/10.1039/C39950000455","url":null,"abstract":"In reactions between the hexamolybdate [Mo6O19]2– and 1,4-diaminobenzene, terminal oxides are replaced by 4-aminophenylimido ligands and the first structurally characterised polyoxometallate to contain functionalised organoimido ligands, (Bun4)2[Mo6O17(NC6H4NH2)2]5, is also the first example of a trans-bis(imido) derivative; further condensation also occurs to yield species in which hexamolybdate units are linked by 1,4-phenylenediimido bridges.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":"184 1","pages":"455-456"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80499043","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: 87
Harnessing steric strain to obtain superbases 利用位压应变获得超碱基
Journal of The Chemical Society, Chemical Communications Pub Date : 1995-01-01 DOI: 10.1039/C39950001543
R. Notario, J. Elguero
{"title":"Harnessing steric strain to obtain superbases","authors":"R. Notario, J. Elguero","doi":"10.1039/C39950001543","DOIUrl":"https://doi.org/10.1039/C39950001543","url":null,"abstract":"Theoretical calculations (G2 with complete optimization of the geometry) of tetrahedrane and its protonated form lead to the conclusion that tetrahedtane should be a superbase [proton affinity (PA) at 298 K, 252.0 kcal mol–1(1 cal = 4.184 J)]; the performance of the G2 method was checked against 14 experimental PA values.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":"94 1","pages":"1543-1544"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79450177","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: 13
Isolation and structure of halistatin 3 from the Western Pacific (Chuuk) marine sponge Phakellia sp 西太平洋(Chuuk)海绵Phakellia sp .中halistatin 3的分离及结构
Journal of The Chemical Society, Chemical Communications Pub Date : 1995-01-01 DOI: 10.1039/C39950000383
G. Pettit, Y. Ichihara, G. Wurzel, Michael D. Williams, Jean M. Schmidt, J. Chapuis
{"title":"Isolation and structure of halistatin 3 from the Western Pacific (Chuuk) marine sponge Phakellia sp","authors":"G. Pettit, Y. Ichihara, G. Wurzel, Michael D. Williams, Jean M. Schmidt, J. Chapuis","doi":"10.1039/C39950000383","DOIUrl":"https://doi.org/10.1039/C39950000383","url":null,"abstract":"The Micronesian marine sponge Phakellia sp. has been found to contain key members of the extraordinarily potent (antineoplastic) halichondrin/halistatin polyether macrolide family.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":"32 1","pages":"383-385"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81277968","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: 19
Bioactive surfactants containing a β-lactam group: synthesis and properties 含有β-内酰胺基团的生物活性表面活性剂:合成及其性质
Journal of The Chemical Society, Chemical Communications Pub Date : 1995-01-01 DOI: 10.1039/C39950001279
L. Molina, A. Perani, M. Infante, M. Manresa, M. Maugras, S. Achilefu, M. Stébé, C. Selve
{"title":"Bioactive surfactants containing a β-lactam group: synthesis and properties","authors":"L. Molina, A. Perani, M. Infante, M. Manresa, M. Maugras, S. Achilefu, M. Stébé, C. Selve","doi":"10.1039/C39950001279","DOIUrl":"https://doi.org/10.1039/C39950001279","url":null,"abstract":"Selective activation of 3-hydroxy-2-hydroxymethyl-2-methyl propanamide with P(NMe2)3–CCl4, and subsequent intramolecular cyclisation yields β-lactam derivatives that have both surface and antibiotic activity.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":"86 1","pages":"1279-1280"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81285890","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: 7
Observations on selectivity reversal during chiral auxiliary-directed asymmetric nucleophile additions to arene–manganese tricarbonyl complexes 手性辅助定向不对称亲核试剂加成芳烃-锰三羰基配合物选择性逆转的观察
Journal of The Chemical Society, Chemical Communications Pub Date : 1995-01-01 DOI: 10.1039/C39950000853
A. Pearson, M. Milletti, P. Zhu
{"title":"Observations on selectivity reversal during chiral auxiliary-directed asymmetric nucleophile additions to arene–manganese tricarbonyl complexes","authors":"A. Pearson, M. Milletti, P. Zhu","doi":"10.1039/C39950000853","DOIUrl":"https://doi.org/10.1039/C39950000853","url":null,"abstract":"A study of hydride nucleophile reactions with η6-(2R, 5R)-dimethylpyrrolidinylbenzene–manganese tricarbonyl hexafluorophosphate 1 reveals an unexpected reversal of selectivity during addition of hydride to the diastereotopic meta carbons, which is explained on the basis of changes in transition state location as the reactivity of the nucleophile is varied.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":"1 1","pages":"853-854"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81574987","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: 3
Singlet oxygen additions to hexacyclo[10.2.1.02,11.04,9.04,14.09,13]pentadeca-5,7-dien-3,10-diones. A remarkable substituent effect on π-face selectivity induced by transition state geometric distortions [10.2.1.02,11.04,9.04,14.09,13]五元-5,7-二-3,10-二酮的单重态氧加成。取代基对过渡态几何畸变诱导的π面选择性有显著影响
Journal of The Chemical Society, Chemical Communications Pub Date : 1995-01-01 DOI: 10.1039/C39950000677
G. Mehta, U. Subramanian, A. Pramanik, J. Chandrasekhar, M. Nethaji
{"title":"Singlet oxygen additions to hexacyclo[10.2.1.02,11.04,9.04,14.09,13]pentadeca-5,7-dien-3,10-diones. A remarkable substituent effect on π-face selectivity induced by transition state geometric distortions","authors":"G. Mehta, U. Subramanian, A. Pramanik, J. Chandrasekhar, M. Nethaji","doi":"10.1039/C39950000677","DOIUrl":"https://doi.org/10.1039/C39950000677","url":null,"abstract":"Face selectivity in singlet oxygen addition to a rigid polycyclic diene is reversed by sterically neutral 1,4-substitution, an effect attributed to lone pair repulsions induced by out-of-plane bending at the transition state.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":"18 1","pages":"677-678"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84301449","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: 0
Triple interpenetration in [Ag(4,4′-bipyridine)][NO3], a cationic polymer with a three-dimensional motif generated by self-assembly of ‘T-shaped’ building blocks [Ag(4,4 ' -联吡啶)][NO3]是一种阳离子聚合物，其三维基序是由“t”形构建块自组装而产生的
Journal of The Chemical Society, Chemical Communications Pub Date : 1995-01-01 DOI: 10.1039/C39950002413
F. Robinson, M. Zaworotko
{"title":"Triple interpenetration in [Ag(4,4′-bipyridine)][NO3], a cationic polymer with a three-dimensional motif generated by self-assembly of ‘T-shaped’ building blocks","authors":"F. Robinson, M. Zaworotko","doi":"10.1039/C39950002413","DOIUrl":"https://doi.org/10.1039/C39950002413","url":null,"abstract":"We report the synthesis and single-crystal X-ray structure of a triply interpenetrated cationic framework with a three-dimensional motif that is based upon T-shaped building blocks generated by silver(I) cations and 1 equivalent of 4,4′-bipyridine.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":"25 1","pages":"2413-2414"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84516293","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: 150
A zinc(II)-organized molecular receptor as a catalyst for the cleavage of amino acid esters 锌(II)组织的分子受体，作为氨基酸酯裂解的催化剂
Journal of The Chemical Society, Chemical Communications Pub Date : 1995-01-01 DOI: 10.1039/C39950001163
P. Scrimin, P. Tecilla, U. Tonellato, G. Valle, A. Veronese
{"title":"A zinc(II)-organized molecular receptor as a catalyst for the cleavage of amino acid esters","authors":"P. Scrimin, P. Tecilla, U. Tonellato, G. Valle, A. Veronese","doi":"10.1039/C39950001163","DOIUrl":"https://doi.org/10.1039/C39950001163","url":null,"abstract":"The ZnII complex of ligand 1a, a derivative of TREN bearing three 3-hydroxyphenyl units at the amines of its arms, acts as a transacylation catalyst of the p-nitrophenyl ester of 4-pyridinecarboxylic acid.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":"115 1","pages":"1163-1164"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84868004","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: 10
On the mechanism of titanocenedichloride-catalysed hydromagnesiation of alkynes with alkyl Grignard reagents 烷基格氏试剂催化二氯化钛加氢镁化炔烃的机理研究
Journal of The Chemical Society, Chemical Communications Pub Date : 1995-01-01 DOI: 10.1039/C39950000659
Yuan Gao, F. Sato
{"title":"On the mechanism of titanocenedichloride-catalysed hydromagnesiation of alkynes with alkyl Grignard reagents","authors":"Yuan Gao, F. Sato","doi":"10.1039/C39950000659","DOIUrl":"https://doi.org/10.1039/C39950000659","url":null,"abstract":"The mechanism of titanocenedichloride-catalysed hydromagnesiation reaction of alkynes with an alkyl Grignard reagent is elucidated and it is revealed that the regiochemistry of the reaction controlled at the step of transmetallation from titanium to magnesium.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":"69 1","pages":"659-660"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85114909","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: 32
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