N-heterozykiische Modifikation des 2-Menthen-Systems

Authors

  • Karl-Heinz Spohn Chemisches Institut der Universität, D-74 Tübingen, Wilhelmstraße 33 (BRD)
  • Eberhard Breitmaier Chemisches Institut der Universität, D-74 Tübingen, Wilhelmstraße 33 (BRD)

DOI:

https://doi.org/10.2533/chimia.1971.365

Abstract

The condensation of 2-hydroxymethylene-3-menthone with hydrazines yields 4,5,6,7-tetrahydroindazoles. 5,6,7,8-Tetrahydroisoquinolines and 5,6,7,8-tetrahydroquinazolines are obtained by reacting 2-aminomethylene-3-menthone with 1,3-dicarbonylcompounds and formamide or guanidine, respectively. The heterocycles are mostly isolated as mixtures of stereoisomers and characterized by 1H- and 13C-chemieal shifts of the C–H groups in the heterocyclic rings.

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Published

1971-11-30

Issue

Vol. 25 No. 11 (1971): Forschung/Research

Section

Kurze Mitteilungen

License

Copyright (c) 1971 Karl-Heinz Spohn

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
K.-H. Spohn, E. Breitmaier, Chimia 1971, 25, 365, DOI: 10.2533/chimia.1971.365.