Helmut Kaspers
Bayer
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Helmut Kaspers.
Advances in Pesticide ScienceAbstract and Addendum | 1979
Wolfgang Kramer; Karl H. Buchel; Werner Meiser; Wilhelm Brandes; Helmut Kaspers; Hans Scheinpflug
Abstract The synthesis, biological activity and structure activity relationships of phenoxy-triazolyl-methanes are reported. The synthesis of these compounds is demonstrated for triadimefon, starting from a-chloropinacolone. The biological activity of phenoxy-triazolyl-methanes, the so-called triazolyl-0,N-acetals covers mainly protective, curative, eradicative, and systemic control of powdery mildews, scab and rust. On a series of triazolyl-0,N-acetals rnonosubstituted in the phenyl ring, Spearman rank correlation is investigated. In accordance with this rank correlation, the QSAR shows a good intercorrelation of activity of triazolyl-0,N-acetals against Erysiphe cichoracearurn in protective greenhouse tests and the lipophilicity data π, RM and Verloops sterie parameter B4.
Archive | 1974
Wolfgang Kramer; Karl H. Buchel; Werner Meiser; Helmut Kaspers; Paul-Ernst Frohberger
Archive | 1973
Wolfgang Dr Kraemer; Karl-Heinz Prof Dr Buechel; Werner Meiser; Helmut Kaspers; Paul-Ernst Frohberger
Archive | 1975
Karl H. Buchel; Wolfgang Kramer; Helmut Kaspers; Hans Scheinpflug
Archive | 1974
Helmut Timmler; Wolfgang Dr Kraemer; Karl-Heinz Prof Dr Buechel; Helmut Kaspers; Wilhelm Brandes
Archive | 1981
Helmut Timmler; Wolfgang Kramer; Karl H. Buchel; Helmut Kaspers; Wilhelm Brandes
Archive | 1989
Wilhelm Brandes; Helmut Kaspers; Paul Reinecke; Hans Scheinpflug; Wolfgang Kramer
Archive | 1973
Ferdinand Grewe; Helmut Kaspers; Engelbert Kuhle; Arno Widdig
Archive | 1972
F Meyer; Hans Scheinpflug; I Meyer; Helmut Kaspers
Archive | 1971
Helmut Timmler; Wilfried Draber; Helmut Kaspers; Hans Scheinpflug; Karl-Heinz Prof Dr Buechel; Ferdinand Grewe
