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| 1. |
Chemistry of the Silicon‐Silicon Double Bond |
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Angewandte Chemie International Edition in English,
Volume 26,
Issue 12,
1987,
Page 1201-1211
Robert West,
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摘要:
AbstractDisilenes, compounds containing silicon‐silicon double bonds, can be isolated as thermally stable, yellow‐ or orange‐colored crystalline compounds; the substituent groups at silicon must be large (mesityl,tert‐butyl, etc.) to prevent polymerization. Structural and spectro‐scopic studies indicate many similarities between the 3p–3p π bonding in disilenes and the 2p‐2p π bonding in olefins, but disilenes are much more reactive than alkenes. The reactions of disilenes lead to many new classes of silicon compounds, including three‐ and four‐membered rings which present novel problems
ISSN:0570-0833
DOI:10.1002/anie.198712013
出版商:Hüthig&Wepf Verlag
年代:1987
数据来源: WILEY
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| 2. |
Modern NMR Spectroscopy of Organolithium Compounds |
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Angewandte Chemie International Edition in English,
Volume 26,
Issue 12,
1987,
Page 1212-1220
Harald Günther,
Detlef Moskau,
Peter Bast,
Dietmar Schmalz,
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摘要:
AbstractModern methods of NMR spectroscopy, in particular the two‐dimensional techniques, offer new chances for structure determinations in the field of organolithium compounds, where the combination of1H‐,13C‐, and6(7)Li‐NMR spectroscopy is an especially useful feature. Chemical shift correlations which also include the lithium nuclei allow a complete assignment of the1H‐,13C‐, and6Li‐NMR spectra and thereby a better characterization of the various aggregates and complexes present in solution. Spatial proximities of6Li and1H can be detected by nuclear Overhauser experiments, and6(7)Li‐NMR exchange spectroscopy can provide new information with regard to the mechanisms and energetics of dynamic processes like aggregate interchange and complexation. After a short resumé of the experimental aspects of the NMR spectroscopy of organolithium compounds and a discussion of the NMR parameters of these systems, new experimental techniques are presented. Areas of application of these newly conceived one‐ and two‐dimensional NMR experiments are illustrated with selected examples. The results show that even more detailed information about the structure and reactivity of organolithium compounds, which are so important for organic synthesis, can be ex
ISSN:0570-0833
DOI:10.1002/anie.198712121
出版商:Hüthig&Wepf Verlag
年代:1987
数据来源: WILEY
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| 3. |
Molecular Dynamics of Elementary Chemical Reactions (Nobel Lecture) |
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Angewandte Chemie International Edition in English,
Volume 26,
Issue 12,
1987,
Page 1221-1243
Dudley R. Herschbach,
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ISSN:0570-0833
DOI:10.1002/anie.198712211
出版商:Hüthig&Wepf Verlag
年代:1987
数据来源: WILEY
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| 4. |
Molecular Recognition: Stacking Interactions Influence Watson‐Crick vs. Hoogsteen Base‐Pairing in a Model for Adenine Receptors |
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Angewandte Chemie International Edition in English,
Volume 26,
Issue 12,
1987,
Page 1244-1245
Julius Rebek,
Kevin Williams,
Kevin Parris,
Pablo Ballester,
Kyu‐Sung Jeong,
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ISSN:0570-0833
DOI:10.1002/anie.198712441
出版商:Hüthig&Wepf Verlag
年代:1987
数据来源: WILEY
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| 5. |
2,3,9,10‐Tetrakis(trimethylsilyl)[5]phenylene. Synthesis via Regiospecific Cobalt‐Catalyzed Cocyclization of 1,6‐Bis(triisopropylsilyl)‐l,3,5‐hexatriyne |
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Angewandte Chemie International Edition in English,
Volume 26,
Issue 12,
1987,
Page 1246-1247
Luis Blanco,
Harold E. Helson,
Michael Hirthammer,
Helene Mestdagh,
Spyros Spyroudis,
K. Peter C. Vollhardt,
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ISSN:0570-0833
DOI:10.1002/anie.198712461
出版商:Hüthig&Wepf Verlag
年代:1987
数据来源: WILEY
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| 6. |
Cyclohepta[a]phenalene: A Highly Electron‐Donating Nonalternant Hydrocarbon |
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Angewandte Chemie International Edition in English,
Volume 26,
Issue 12,
1987,
Page 1247-1249
Yoshikazu Sugihara,
Hiromasa Yamamoto,
Kenji Mizoue,
Ichiro Murata,
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ISSN:0570-0833
DOI:10.1002/anie.198712471
出版商:Hüthig&Wepf Verlag
年代:1987
数据来源: WILEY
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| 7. |
The “Wheel of Mainz” as a Liquid Crystal?—Structural Variation and Mesophade Properties of Trimeric Descotic Compounds |
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Angewandte Chemie International Edition in English,
Volume 26,
Issue 12,
1987,
Page 1249-1252
Willi Kreuder,
Helmut Ringsdorf,
Otto Herrmann‐Schönherr,
Joachim H. Wendorff,
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ISSN:0570-0833
DOI:10.1002/anie.198712491
出版商:Hüthig&Wepf Verlag
年代:1987
数据来源: WILEY
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| 8. |
Relay Conjugation via Twisted Six‐ and Seven‐Membered Rings |
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Angewandte Chemie International Edition in English,
Volume 26,
Issue 12,
1987,
Page 1252-1253
Rolf Gleiter,
Bernd Kissler,
Camille Ganter,
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ISSN:0570-0833
DOI:10.1002/anie.198712521
出版商:Hüthig&Wepf Verlag
年代:1987
数据来源: WILEY
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| 9. |
Low‐Temperature Photolysis of Peracetylated Dodecanoyl Peroxides of Tartaric Acid andD‐Gluconic Acid in the Solid State—A Diastereoselective Radical Coupling |
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Angewandte Chemie International Edition in English,
Volume 26,
Issue 12,
1987,
Page 1253-1254
Rainer Lomölder,
Hans J. Schäfer,
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ISSN:0570-0833
DOI:10.1002/anie.198712531
出版商:Hüthig&Wepf Verlag
年代:1987
数据来源: WILEY
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| 10. |
Polystannanes Ph3Sn‐SnPh3(n = 1–4): A Route to Molecular Metals? |
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Angewandte Chemie International Edition in English,
Volume 26,
Issue 12,
1987,
Page 1255-1256
Stefan Adams,
Martin Dräger,
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ISSN:0570-0833
DOI:10.1002/anie.198712551
出版商:Hüthig&Wepf Verlag
年代:1987
数据来源: WILEY
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