Structural effects in solvolytic reactions. 44. Effect of increasing electron demand on the carbon-13 NMR shifts in 1-aryl-1-hydroxyethyl carbocations. Deviations in the .sigma.C+-.DELTA..delta.C+ plot for these protonated acetophenones containing strongly electron-withdrawing substituents

Herbert C. Brown; Mariappan Periasamy

doi:10.1021/jo00168a004

Structural effects in solvolytic reactions. 44. Effect of increasing electron demand on the carbon-13 NMR shifts in 1-aryl-1-hydroxyethyl carbocations. Deviations in the .sigma.C+-.DELTA..delta.C+ plot for these protonated acetophenones containing strongly electron-withdrawing substituents

The Journal of Organic Chemistry ◽

10.1021/jo00168a004 ◽

1983 ◽

Vol 48 (20) ◽

pp. 3386-3388 ◽

Cited By ~ 3

Author(s):

Herbert C. Brown ◽

Mariappan Periasamy

Keyword(s):

Structural Effects ◽

Electron Demand ◽

Electron Withdrawing Substituents

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Structural effects in solvolytic reactions. 43. Effect of increasing electron demand on the carbon-13 NMR shifts for 2-aryl-3-methyl-2-butyl cations. A static system becoming an equilibrating system with electron-withdrawing substituents

Journal of the American Chemical Society ◽

10.1021/ja00341a037 ◽

1983 ◽

Vol 105 (3) ◽

pp. 529-533 ◽

Cited By ~ 3

Author(s):

Herbert C. Brown ◽

Mariappan Periasamy

Keyword(s):

Static System ◽

Structural Effects ◽

Electron Demand ◽

Electron Withdrawing Substituents

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Structural effects in solvolytic reactions. 24. Solvolysis of 1-cycloalkyl-1-aryl-1-ethyl p-nitrobenzoates. Effect of .alpha.-cycloalkyl groups in stabilizing an electron-deficient center as revealed by the tool of increasing electron demand

Journal of the American Chemical Society ◽

10.1021/ja00472a031 ◽

1978 ◽

Vol 100 (4) ◽

pp. 1218-1222 ◽

Cited By ~ 4

Author(s):

Herbert C. Brown ◽

M. Ravindranathan ◽

C. Gundu Rao

Keyword(s):

Structural Effects ◽

Electron Demand

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Structural effects in solvolytic reactions. XI. Rates and products of solvolysis of 2-aryl- and 2-methyl-2-norbornenyl p-nitrobenzoates. Exo:endo rate ratio as a function of increasing electron demand

Journal of the American Chemical Society ◽

10.1021/ja00859a010 ◽

1975 ◽

Vol 97 (26) ◽

pp. 7442-7448 ◽

Cited By ~ 17

Author(s):

Herbert C. Brown ◽

Edward N. Peters

Keyword(s):

Rate Ratio ◽

Structural Effects ◽

Electron Demand

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ChemInform Abstract: STRUCTURAL EFFECTS IN SOLVOLYTIC REACTIONS. 35. CARBON-13 NUCLEAR MAGNETIC RESONANCE STUDIES OF CARBOCATIONS. EFFECT OF INCREASING ELECTRON DEMAND ON THE CARBON-13 NUCLEAR MAGNETIC RESONANCE SHIFTS IN 2-ARYL-2-BUTYL AN 4-ARYL-4-HEPTYL

Chemischer Informationsdienst ◽

10.1002/chin.198137058 ◽

1981 ◽

Vol 12 (37) ◽

Author(s):

H. C. BROWN ◽

M. PERIASAMY ◽

K.-T. LIU

Keyword(s):

Nuclear Magnetic Resonance ◽

Magnetic Resonance ◽

Structural Effects ◽

Magnetic Resonance Studies ◽

Electron Demand ◽

Nuclear Magnetic

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ChemInform Abstract: STRUCTURAL EFFECTS IN SOLVOLYTIC REACTIONS. 40. CARBON-13 NUCLEAR MAGNETIC RESONANCE STUDIES OF CARBOCATIONS. 8. ANOMALOUS CARBON-13 CHEMICAL SHIFTS WITH INCREASING ELECTRON DEMAND IN THE 2-ARYL-2-NORBORNYL CATIONS AND RELATED SYSTEMS

Chemischer Informationsdienst ◽

10.1002/chin.198249059 ◽

1982 ◽

Vol 13 (49) ◽

Author(s):

H. C. BROWN ◽

M. PERIASAMY ◽

D. P. KELLY ◽

J. J. GIANSIRACUSA

Keyword(s):

Nuclear Magnetic Resonance ◽

Magnetic Resonance ◽

Chemical Shifts ◽

Structural Effects ◽

Magnetic Resonance Studies ◽

Electron Demand ◽

Nuclear Magnetic

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ChemInform Abstract: STRUCTURAL EFFECTS IN SOLVOLYTIC REACTIONS. XIII. EFFECT OF INCREASING ELECTRON DEMAND ON THE RATES OF SOLVOLYSIS OF 1-ARYLCYCLOPENT-3-EN-1-YL AND 1-ARYLCYCLOPENTYL P-NITROBENZOATES. EVIDENCE FOR THE ABSENCE OF Π-PARTICIPATION

Chemischer Informationsdienst ◽

10.1002/chin.197611080 ◽

1976 ◽

Vol 7 (11) ◽

pp. no-no

Author(s):

EDWARD N. PETERS ◽

HERBERT C. BROWN

Keyword(s):

Structural Effects ◽

Electron Demand

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Structural effects in solvolytic reactions. IX. Solvolysis of 3-aryl-3-nortricyclyl p-nitrobenzoates. Evidence for major increases in electron supply by the cyclopropyl group with increasing electron demand at the cationic center

Journal of the American Chemical Society ◽

10.1021/ja00840a053 ◽

1975 ◽

Vol 97 (7) ◽

pp. 1927-1929 ◽

Cited By ~ 22

Author(s):

Herbert C. Brown ◽

Edward N. Peters

Keyword(s):

Structural Effects ◽

Cyclopropyl Group ◽

Electron Demand

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Structural effects in solvolytic reactions. 23. New .sigma.+ constants for activating substituents. The solvolysis of 1-aryl-1-cyclopropyl 3,5-dinitrobenzoates containing activating substituents in the aryl group. The tool of increasing electron demand and I-strain

Journal of the American Chemical Society ◽

10.1021/ja00465a040 ◽

1977 ◽

Vol 99 (23) ◽

pp. 7663-7667 ◽

Cited By ~ 20

Author(s):

Herbert C. Brown ◽

C. Gundu Rao ◽

M. Ravindranathan

Keyword(s):

Structural Effects ◽

Aryl Group ◽

Electron Demand

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ChemInform Abstract: STRUCTURAL EFFECTS IN SOLVOLYTIC REACTIONS. 14. SOLVOLYSIS OF THE 2-ARYL-2-BENZONORBORNENYL P-NITROBENZOATES. APPLICATION OF THE TOOL OF INCREASING ELECTRON DEMAND AS A TEST FOR Π PARTICIPATION IN THE HIGH EXO-ENDO RATE RATIOS

Chemischer Informationsdienst ◽

10.1002/chin.197628149 ◽

1976 ◽

Vol 7 (28) ◽

pp. no-no

Author(s):

HERBERT C. BROWN ◽

SHIRO IKEGAMI ◽

KWANG-TING LIU ◽

GARY L. TRITLE

Keyword(s):

Structural Effects ◽

Rate Ratios ◽

Electron Demand

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Structural effects in solvolytic reactions. 21. Solvolysis of 2-aryl-2-norbornyl and 2-aryl-2-camphenilyl p-nitrobenzoates. Critical examination of the importance of .sigma.-participation in the solvolysis of tertiary 2-norbornyl derivatives by the application of the tool of increasing electron demand

Journal of the American Chemical Society ◽

10.1021/ja00450a047 ◽

1977 ◽

Vol 99 (8) ◽

pp. 2684-2690 ◽

Cited By ~ 10

Author(s):

Herbert C. Brown ◽

Kenichi Takeuchi ◽

M. Ravindranathan

Keyword(s):

Critical Examination ◽

Structural Effects ◽

Electron Demand

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