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Your search keyword '"J. B. Holtwick"' showing total 7 results
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7 results on '"J. B. Holtwick"'

1. Synthesis and Chemistry of Agrochemicals III

Author

DON R. BAKER, JOSEPH G. FENYES, JAMES J. STEFFENS, Don R. Baker, Joseph G. Fenyes, James J. Steffens, William A. Kleschick, Mark J. Costales, B. Clifford Gerwick, J. B. Holtwick, R. W. Meikle, W. T. Monte, N. R. Pearson, S. W. Snider, M. V. Subramanian, J. C. VanHeertum, A. P. Vinogradoff, William A

Published
1992

2. 1,2,4-Triazolo[1,5-a]pyrimidine-2-sulfonanilide Herbicides

Author

J. B. Holtwick, J. J. Doney, J. C. VanHeertum, M. V. Subramanian, B. Clifford Gerwick, Anna P. Vinogradoff, Chrislyn M. Carson, R. W. Meikle, Jack C. Little, N. R. Pearson, Kleschick William A, Mark J. Costales, S. W. Snider, and W. T. Monte

Subjects
Sulfonanilide, chemistry.chemical_compound, Pyrimidine, Chemistry, In vivo, Substitution (logic), Alkoxy group, Organic chemistry, Biological activity, Decomposition, In vitro
Published
1992

3. 1,2,4-Triazolo[1,5-a]pyrimidine-2-sulfonanilide Herbicides

Author

B. Clifford Gerwick, M. V. Subramanian, S. W. Snider, Kleschick William A, W. T. Monte, N. R. Pearson, R. W. Meikle, J. C. VanHeertum, Anna P. Vinogradoff, Mark J. Costales, and J. B. Holtwick

Subjects
chemistry.chemical_classification, Sulfonanilide, chemistry.chemical_compound, chemistry, Pyrimidine, In vivo, Substitution (logic), Halogen, Organic chemistry, Biological activity, Alkyl, In vitro
Published
1992

6. Syntheses of all singly labeled [N]adenines: Mass spectral fragmentation of adenine

Author

M del C, Barrio, D I, Scopes, J B, Holtwick, and N J, Leonard

Subjects
Physical Sciences: Chemistry
Abstract

Syntheses of all five of the singly labeled [(15)N]adenines are now provided. The presence or absence of two-bond (15)N-(1)H spin couplings in their (1)H NMR spectra confirm the location of the isotope in each case. The fragmentation patterns in their mass spectra are indicative of the sequential losses of HCN units and of CH(2)N(2) from adenine upon electron impact.

Published
1981

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