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Erratum: Intercalation of nitric oxide into double-layered cuprate superstructure (Journal of the Chemical Society, Chemical Communications (1995) (485)) 勘误:将一氧化氮插入双层铜上层结构(化学学会杂志,化学通讯(1995)(485))
Pub Date : 1995-12-01 DOI: 10.1039/C39950001309
M. Machida, Hirotaka Murakami, Takeshi Kitsubayashi, T. Kijima
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引用次数: 0
Novel naphthoquinone methide dyes for second-order nonlinear optical materials 用于二阶非线性光学材料的新型萘醌染料
Pub Date : 1995-09-12 DOI: 10.1039/C39950000969
Y. Kubo, S. Aramaki, Okamoto Yuko, T. Murayama
Naphthoquinone methide dyes show a large Pockels coefficient at 1.3 µm when poled in a polymer matrix: the second-order nonlinear hyperpolarizability (µβ) values obtained from Pockels coefficients that appear after poling in a constant electric field are (5700–7400)× 10–48 esu, being much higher than that of commonly used Disperse Red 1 (DR1).
萘醌类染料在聚合物基体中极化后,在1.3 μ m处有较大的Pockels系数,在恒定电场中极化后的Pockels系数为(5700 ~ 7400)× 10-48 esu,远高于常用的分散红1 (DR1)。
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引用次数: 5
Optically active diazacyclophosphamides: novel efficient reagents for the determination of the absolute configuration of amines and alcohols 光活性重氮环磷酰胺:一种测定胺和醇绝对构型的新型高效试剂
Pub Date : 1995-08-08 DOI: 10.1039/C39950000435
T. Oshikawa,, M. Yamashita,, Sadaaki Kumagai, K. Seo, J. Kobayashi
Various amines and alcohols are converted into the corresponding phosphamides by the action of optically active diazacyclophosphamidic chlorides and absolute configurations of amines and alcohols are readily determined by proton and phosphorus NMR of the cyclophosphamides that are formed.
各种胺和醇在具有光学活性的二氮杂环磷酰胺氯化物的作用下转化为相应的磷酰胺,并且通过所形成的环磷酰胺的质子和磷核磁共振很容易确定胺和醇的绝对构型。
{"title":"Optically active diazacyclophosphamides: novel efficient reagents for the determination of the absolute configuration of amines and alcohols","authors":"T. Oshikawa,, M. Yamashita,, Sadaaki Kumagai, K. Seo, J. Kobayashi","doi":"10.1039/C39950000435","DOIUrl":"https://doi.org/10.1039/C39950000435","url":null,"abstract":"Various amines and alcohols are converted into the corresponding phosphamides by the action of optically active diazacyclophosphamidic chlorides and absolute configurations of amines and alcohols are readily determined by proton and phosphorus NMR of the cyclophosphamides that are formed.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":"49 1","pages":"435-436"},"PeriodicalIF":0.0,"publicationDate":"1995-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75330667","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: 12
Remote asymmetric induction in reactions between 4- and 5-benzyloxypent-2-enyl(tributyl)stannanes and chiral imines prepared from butyl glyoxylate 4-和5-苄基氧基-2-烯基(三丁基)锡烷与乙氧基丁酸酯制备的手性亚胺的远程不对称诱导反应
Pub Date : 1995-08-01 DOI: 10.1039/C39950000657
D. Hallett, E. Thomas
Transmetallation of 4- and 5-benzyloxypent-2-enyl(tributyl)stannanes 13 and 18 with tin(IV) chloride generates intermediate allyltin trichlorides which react with imines 9 and ent-9, prepared from butyl glyoxylate and either (R)- or (S)-1-phenylethylamine, with effective 1,5-asymmetric induction.
4-和5-苄基氧氧基-2-烯基(三丁基)锡烷13和18与氯化锡(IV)发生金属化反应,生成中间体丙烯基三氯化锡,与亚胺9和对-9反应,亚胺9是由乙氧基酸丁酯和(R)-或(S)-1-苯乙胺合成的,具有有效的1,5-不对称诱导作用。
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引用次数: 23
A SIMPLE IN SITU 31P NMR METHOD FOR THE DETERMINATION OF THE ENANTIOMERIC PURITY OF AROMATIC SUBSTRATES 一种简单的原位31p核磁共振测定芳香底物对映体纯度的方法
Pub Date : 1995-08-01 DOI: 10.1039/C39950000689
J. Buriak, J. Osborn
The enantiomeric purity of aromatic substrates can be determined using 31P NMR with chiral rhodium complexes in situ.
芳香底物的对映体纯度可以用手性铑配合物原位31P NMR测定。
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引用次数: 7
A new telogen for telechelic oligomers of chlorotrifluoroethylene 三氟氯乙烯远旋低聚物的一种新止动素
Pub Date : 1995-07-01 DOI: 10.1039/C39910001323
R. Chambers, M. Greenhall, A. Wright, G. Caporiccio
A new telogen, I(CF2CFCl)nl (n= 1) and its telomers (n= average 6) are obtained by irradiation of mixtures of iodine and Chlorotrifluoroethylene.
用碘和三氟氯乙烯的混合物辐照得到了一种新的止息剂I(CF2CFCl)nl (n= 1)及其端粒体(n=平均6)。
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引用次数: 13
Structural order in MCM-41 controlled by shifting silicate polymerization equilibrium 转移硅酸盐聚合平衡控制MCM-41的结构顺序
Pub Date : 1995-04-01 DOI: 10.1039/C39950000711
R. Ryoo, Ji Man Kim
Powder X-ray diffraction, 29Si and 129Xe NMR spectroscopy of MCM-41 show that the long-range structural order and textural uniformity of the mesoporous molecular sieve are markedly improved due to a shift in the reaction equilibrium when acetic acid is repeatedly added during the conversion of sodium silicate and NMe3(C16H33)Cl to a MCM-41 phase.
MCM-41的粉末x射线衍射、29Si和129Xe核磁共振谱表明,在水玻璃和NMe3(C16H33)Cl向MCM-41相转化的过程中,反复加入乙酸改变了反应平衡,显著改善了介孔分子筛的远程结构秩序和织构均匀性。
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引用次数: 169
The construction of 1,3-dienes containing an E-double bond and an exo-methylene group 含有e -双键和外亚甲基的1,3-二烯的构造
Pub Date : 1995-01-01 DOI: 10.1039/C39950001497
J. Eshelby, P. Parsons, N. C. Sillars, P. Crowley
The use of a tandem Ireland Claisen rearrangement followed by an in situ silicon mediated epoxide fragmentation provides an efficient entry into 1,3-dienes containing an E-double bond and an exo-methylene group; initial results regarding remote chirality control are reported.
采用串联Ireland Claisen重排和原位硅介导的环氧化物裂解,可有效进入含有e -双键和外亚甲基的1,3-二烯;报道了远程手性控制的初步结果。
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引用次数: 7
Iodination and Heck alkynylation of 5,15-diphenylporphyrin. A convenient entry to asymmetrically meso-substituted porphyrins 5,15-二苯基卟啉的碘化和Heck炔基化。不对称中位取代卟啉的方便入口
Pub Date : 1995-01-01 DOI: 10.1039/C39950000527
R. Boyle, Claire K. Johnson, D. Dolphin
Iodination of 5,15-diphenylporphyrin followed by metallation and palladium(0) catalysed coupling with monosubstituted acetylenes gives zinc(II)-10-(2-substituted-alkynyl)-5,15-diphenylporphyrins.
5,15-二苯基卟啉碘化,金属化,钯(0)催化偶联与单取代乙炔得到锌(II)-10-(2-取代炔基)-5,15-二苯基卟啉。
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引用次数: 58
Activation and functionalisation of the C–H bonds of methane and higher alkanes by a silica-supported tantalum hydride complex 二氧化硅负载的氢化钽配合物对甲烷和高级烷烃碳氢键的活化和功能化
Pub Date : 1995-01-01 DOI: 10.1039/C39950000991
V. Vidal, A. Théolier, J. Thivolle-cazat, J. Basset
Silica-supported tantalum hydride activates at low temperature the C–H and the C–D bonds of cyclooctane and CD4, respectively, to form the corresponding cyclooctyl and perdeuteriomethyl-tantalum surface complexes; these complexes are transformed under molecular oxygen into the corresponding tantalum-alkoxy derivatives which with acetic acid give rise to the corresponding alkylacetates.
二氧化硅负载的氢化钽在低温下分别激活环辛烷和CD4的C-H键和C-D键,形成相应的环辛烷和过氘甲基钽表面配合物;这些配合物在分子氧作用下转化为相应的钽烷氧基衍生物,与乙酸反应生成相应的烷基乙酸酯。
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引用次数: 23
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