Schuster II, Dyllick-Brenzinger C, Roberts JD. Nitrogen-15 nuclear magnetic resonance spectroscopy. Effects of hydrogen bonding and protonation on nitrogen chemical shifts of pyrazoles. J Org Chem 2002. [DOI: 10.1021/jo01325a003] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]

Silversmith EF, Kitahara Y, Roberts JD. Small-Ring Compounds. XIX. On the Synthesis of Cyclobutenones via Vinylketenes1. J Am Chem Soc 2002. [DOI: 10.1021/ja01548a066] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]

Hawkes GE, Marzin C, Johns SR, Roberts JD. Nuclear magnetic resonance shift reagents. Quantitative estimates of contact contributions to lanthanide-induced chemical-shift changes for exo-norbornylamine. J Am Chem Soc 2002. [DOI: 10.1021/ja00786a051] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]

Young WG, Roberts JD. Allylic Rearrangements. XX. Some Addition Reactions of Butenylmagnesium Bromide. J Am Chem Soc 2002. [DOI: 10.1021/ja01208a037] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]

Halgren TA, Howden MEH, Medof ME, Roberts JD. Evidence for rapid and reversible equilibration of the .gamma.,.gamma.-diphenylallylcarbinyl and diphenylcyclopropylcarbinyl free radicals. J Am Chem Soc 2002. [DOI: 10.1021/ja00988a046] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]

Rogers MT, Roberts JD. Cyclopropane Derivatives. II. The Electric Moments of Some Alicyclic Compounds. J Am Chem Soc 2002;68:843-6. [DOI: 10.1021/ja01209a039] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]

Jacobs TL, Roberts JD, MacMillan WG. The Dielectric Constants and Dipole Moments of Acetylenic Ethers. J Am Chem Soc 2002. [DOI: 10.1021/ja01232a508] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]

Roberts JD, Grutzner JB, Jautelat M, Dence JB, Smith RA. Nuclear magnetic resonance spectroscopy. Carbon-13 chemical shifts in norbornyl derivatives. J Am Chem Soc 2002. [DOI: 10.1021/ja00727a016] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]

Yavari I, Roberts JD. Nitrogen-15 nuclear magnetic resonance spectroscopy. Carbodiimides. J Org Chem 2002. [DOI: 10.1021/jo00419a001] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]

Hill EA, Roberts JD. A Reinterpretation of the Nuclear Magnetic Resonance Spectrum of Cyclobutene. J Am Chem Soc 2002. [DOI: 10.1021/ja00985a013] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]

Roberts JD, Carboni RA. Electrical Effects of Substituent Groups. Reactivities of Substituted Phenylpropiolic Acids. J Am Chem Soc 2002. [DOI: 10.1021/ja01626a035] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]

Roberts JD, Curtin DY. Metalation of Benzotrifluoride. J Am Chem Soc 2002. [DOI: 10.1021/ja01212a090] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]

Anderson JE, Glazer ES, Griffith DL, Knorr R, Roberts JD. Nuclear magnetic resonance spectroscopy. Conformations and conformational equilibration of some cyclooctane derivatives. J Am Chem Soc 2002. [DOI: 10.1021/ja01034a021] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]

Roberts JD, Dorman DE, Jautelat M. Carbon-13 nuclear magnetic resonance spectroscopy. Quantitative correlations of the carbon chemical shifts of acyclic alkenes. J Org Chem 2002. [DOI: 10.1021/jo00818a007] [Citation(s) in RCA: 246] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]

Casewit C, Roberts JD, Bartsch RA. Nitrogen-15 nuclear magnetic resonance studies of benzenediazonium ions. Effects of solvent, substituent, anion, and 18-crown-6. J Org Chem 2002. [DOI: 10.1021/jo00136a012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]

Botto RE, Kolthammer BWS, Legzdins P, Roberts JD. Carbon-13 and nitrogen-15 nuclear magnetic resonance spectroscopy of some (.eta.5-cyclopentadienyl)nitrosyl complexes of the Group 6B elements. Inorg Chem 2002. [DOI: 10.1021/ic50197a073] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]

Ganter C, Scheidegger U, Roberts JD. Mechanism of the Diels-Alder Reaction. The Question of the “Internal” Pathway for the Thermal endo-exo Isomerizations of the 5-Norbornene-2,3-dicarboxylic Anhydrides1. J Am Chem Soc 2002. [DOI: 10.1021/ja01090a053] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]

Mazur RH, White WN, Semenow DA, Lee CC, Silver MS, Roberts JD. Small-ring Compounds. XXIII. The Nature of the Intermediates in Carbonium Ion-type Interconversion Reactions of Cyclopropylcarbinyl, Cyclobutyl and Allylcarbinyl Derivatives1a. J Am Chem Soc 2002. [DOI: 10.1021/ja01525a073] [Citation(s) in RCA: 128] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]

Weigert FJ, Winstead MB, Garrels JI, Roberts JD. Nuclear magnetic resonance spectroscopy. Conformational equilibria and rates of conformational interconversion of halogenated ethanes. J Am Chem Soc 2002. [DOI: 10.1021/ja00728a020] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]

Foerster HG, Roberts JD. Natural-abundance nitrogen-15 nuclear magnetic resonance spectroscopy of coronands, cryptands, and some of their complexes with diamagnetic metal ions. J Am Chem Soc 2002. [DOI: 10.1021/ja00543a013] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]

Roberts JD. Valency and Molecular Structure. J Am Chem Soc 2002. [DOI: 10.1021/ja01560a080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]

Gonnella NC, Nakanishi H, Holtwick JB, Horowitz DS, Kanamori K, Leonard NJ, Roberts JD. Studies of tautomers and protonation of adenine and its derivatives by nitrogen-15 nuclear magnetic resonance spectroscopy. J Am Chem Soc 2002. [DOI: 10.1021/ja00345a063] [Citation(s) in RCA: 90] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]

Nee M, Roberts JD. Acetolysis of some bicyclo[3.3.0]-2-octenyl tosylates. J Org Chem 2002. [DOI: 10.1021/jo00314a014] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]

Binsch G, Roberts JD. Nitrogen-15 magnetic resonance spectroscopy. Coupling constants in hydrogen cyanide. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100858a064] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]

Caserio FF, Roberts JD. Small-ring Compounds. XXI. 3-Methylenecyclobutanone and Related Compounds1. J Am Chem Soc 2002. [DOI: 10.1021/ja01554a064] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]