Eckehard Dehmlow

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Eckehard V. Dehmlow and Sigrid S. Dehmlow (co-author of the monograph "Phase Transfer Catalysis")

Eckehard Volker Dehmlow (born May 25, 1933 in Berlin ) is a German chemist and professor. His specialty is organic chemistry .

Life

Eckehard Dehmlow grew up in Blankenfelde (now Krs. Teltow-Fläming) south of the Berlin city limits and attended high school in Berlin-Lichtenrade until 1949 . He then moved from the GDR to West Berlin and graduated from the Humboldt School in Berlin-Tegel in 1951 . For a few months he worked as an emergency worker in clearing Berlin. Dehmlow was awarded a - for the time - unusual Fulbright scholarship , which enabled him to attend Earlham College in Richmond, Indiana (USA) in the academic year 1951/52, where he devoted himself to the fundamentals of chemistry and physics as well Took courses in American literature, sociology, and psychology. From 1952 to 1959 Dehmlow studied chemistry at the Free University of Berlin . During the semester break he worked as a student trainee in production and laboratories of various industrial companies ( Bayer , AEG , Borsig and Duisburger Kupferhütte). He wrote his diploma thesis in organic chemistry in Willy Lautsch's group in the field of peptide chemistry. 1961 Dehmlow was with a dissertation on "Stereochemical studies in quinolizidine and Dekalinreihe" at the Technical University of Berlin PhD . His mentor was Ferdinand Bohlmann . Until 1962 he was research assistant with Harry H. Wasserman at Yale University , New Haven, CT (USA) and then took over a scheduled assistant with Ferdinand Bohlmann, where he worked on the structure elucidation of a heptaene macrolide antibiotic. The habilitation took place on June 26, 1968. The title of the thesis was: “Synthesis, properties and mechanisms of formation of cyclopropene and cyclobutene derivatives.” Dehmlow was then a private lecturer and later scientific advisor and professor at the TU Berlin. From 1979 until his retirement in 1998, Dehmlow worked as a professor at Bielefeld University . Dehmlow was friends with Wolfgang Sucrow (1931–1989), Professor of Organic Chemistry at the University of Paderborn , whose obituary he wrote.

Dehmlow was visiting professor at the following well-known universities and research institutes:

Act

His scientific work can mainly be assigned to organic chemical synthesis. Research topics included phase transfer catalysis as well as work on carbene , ketene and allene chemistry, small and strained rings, azulenes , pyridine alkaloids and selected chiral building blocks as well as liquid crystalline compounds . This research resulted in over 230 publications. The focus is on the applications of phase transfer catalysis with over 70 publications. This method is widely used both in the laboratory and in important technical processes. In the majority of cases, chemical reactions are enabled or accelerated in two-phase systems (water / organic solvent). Typical examples are alkylations in the presence of concentrated sodium hydroxide solution or the production of polyesters.

Selection:

  • Monograph Phase Transfer Catalysis
  • The synthesis of the deadly mushroom poison orellanin from the orange fox skin head, which occasionally occurs in large numbers
  • Structure elucidation of some natural substances
  • Stereochemical studies on the dimerization of ketenes, the addition of mono- and dihalocarbenes and the formation of cyclic bisallenes
  • The control of different reaction channels through differently structured phase transfer catalysts

The Hirsch factor of Eckehard Dehmlow is 23rd

Eckehard Dehmlow is married to Sigrid S. Dehmlow (née Möhl), who has a doctorate in chemistry, and is the father of two daughters and a son.

Individual evidence

  1. ^ A b E. V. Dehmlow, SS Dehmlow: Phase Transfer Catalysis . 3rd revised and expanded edition. VCH, Weinheim / New York a. a. 1993, ISBN 3-527-28408-7 .
  2. ^ Eckehard V. Dehmlow: In Memory of Wolfgang Sucrow. In: Glenn W. Patterson, W. David Nes: Physiology and biochemistry of sterols. American Oil Chemists' Society, Champaign, Illinois, ISBN 0-935315-38-1 , pp. Vii ff.
  3. ↑ EV Dehmlow, D. Balschukat: Azulene by vacuum pyrolysis of halogen-tricyclo [7.1.0.0 4,6 ] -decadienen. In: Chem. Ber. 118: 3805 (1985).
  4. ^ EV Dehmlow, M. Birkhahn, H. Bögge: Unusual 1,6-addition of a carbenoid. In: Angew. Chem. 99 (1987), p. 80.
  5. ^ EV Dehmlow, G. Höfle: The mechanism of the phase-transfer-catalyzed formation of tetrahalogen spiropentanes. In: Chem. Ber. 107 (1974), p. 2760.
  6. ↑ EV Dehmlow, W. Broda: Applications of the phase transfer catalysis 23rd note on Bromiodcarben and associated halogen exchange processes. In: Chem. Ber. 115 (1982), p. 3894.
  7. ↑ EV Dehmlow, J. Wilkenloh: Applications of the phase transfer catalysis 37th part: Control of a reaction branching by suitable phase transfer catalysts. In: Tetrahedron Letters. 28: 5489 (1987).
  8. ↑ EV Dehmlow, J. Wilkenloh: Reaction control by the structure of a phase transfer catalyst in tribromomethyl anion / dibromocarbene conversions. In: Liebig's annals of chemistry. 1990, pp. 125-128.
  9. ^ EV Dehmlow: On the formation of mixed perchlorallene-allene dimers during the decomposition of sodium trichloroacetate in the presence of allenes. In: Chem. Ber. 100 (1967), p. 2779.
  10. ^ EV Dehmlow, HH Wasserman: Cyclobutane-1,3-dione. In: J. Am. Chem. Soc. 84 (1962), p. 3786.
  11. ^ EV Dehmlow: Dichlorcyclobutenones from alkynes and sodium trichloroacetate. In: Chem. Ber. 100 (1967), p. 3829.
  12. ^ EV Dehmlow: Cyclopropenonchemie I. Addition and insertion of dichlorocarbenoid in acetylenes in the presence of base. In: Chem. Ber. 101 (1968), p. 410.
  13. ^ EV Dehmlow, J. Soufi, H.-G. Stammler, B. Niemann: New Observations on the Stereoselectivity of Monoiodocarbene Additions. In: Chem. Ber. 126: 499-502 (1993).
  14. ↑ EV Dehmlow: Diäthoxycyclopropenon (Dreiecksäureäthylester). In: Tetrahedron Letters . 1972, p. 1271.
  15. ↑ a b E. V. Dehmlow, H.-J-Schulz: The mushroom toxin orellanin. Syntheses of hydroxylated bipyridines, I. In: Liebigs Annalen der Chemie. 1987, p. 857.
  16. ^ EV Dehmlow, H.-J. Schulz: The mushroom toxin orellanin. Syntheses of hydroxylated bipyridines, I. In: Liebigs Annalen der Chemie. 1987, p. 857.
  17. ^ Eckehard V. Dehmlow, Arthur Sleegers, Nikolaus Risch, Wolfram Trowitzsch, Victor Wray, AA Leslie Gunatilaka: Structure Revision of Minor Alkaloid from Broussonetia Zeylanica. In: Phytochemistry. 29 (1990), pp. 3993-3995.
  18. ↑ EV Dehmlow, H. Lustinetz: New facts on the Stereoselectivity of Monobromocarbenoid addition to Cyclic Alkenes. In: Liebig's annals of chemistry. 1996, pp. 2065-267.
  19. ↑ EV Dehmlow, J. Wilkenloh: About catalyst effects in conversions of α, β-unsaturated ketones and esters with haloforms and phase transfer catalysis. In: Chemical Reports. 123: 583-587 (1990).
personal data
SURNAME Dehmlow, Eckehard
ALTERNATIVE NAMES Dehmlow, Eckehard Volker (full name)
BRIEF DESCRIPTION German chemist
DATE OF BIRTH May 25, 1933
PLACE OF BIRTH Berlin