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Photodimerizations involving formation of eight-membered rings

  • Alexander Schönberg

Abstract

Naphthalene has hitherto not been reported to undergo photodimeri-zation but, according to Bradshaw and Hammond [1], 2-methoxynaphtha-lene (1) dimerizes upon irradiation with ultraviolet light in a variety of solvents. Other naphthalenes carrying methyl, hydroxy, bromo or amino substituents in the 1- or 2-positions resist photodimerization as does also 1-methoxynaphthalene. The photodimer from 1 was regarded to have the structure of a 5,8,9,12-tetrahydro-2,14- or 2,15-dimethyl-l,4[1’,4’]naph-thalenonaphthalene (syn or anti, 2 or 3).

Keywords

Pyrex Tube Carbon Dioxide Atmosphere Anthracene Derivative Pyrex Beaker Amino Substituent 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin · Heidelberg 1968

Authors and Affiliations

  • Alexander Schönberg
    • 1
  1. 1.Technische Universität BerlinGermany

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