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The First Tetrathio‐Substituted Cyclobutane‐1,2,3,4‐tetracarbonitrile — A New Highly Substituted Cyclobutane
Author(s) -
Spannenberg Anke,
Holdt HansJürgen,
Teller Joachim,
Praefcke Klaus,
Kopf Jürgen
Publication year - 1996
Publication title -
liebigs annalen
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0947-3440
DOI - 10.1002/jlac.199619960621
Subject(s) - cyclobutane , chemistry , dichloromethane , cycloaddition , intramolecular force , yield (engineering) , photochemistry , medicinal chemistry , stereochemistry , organic chemistry , catalysis , ring (chemistry) , materials science , solvent , metallurgy
The first tetrathio‐substituted cyclobutane‐1,2,3,4‐tetracarbonitrile 9 was obtained by an intramolecular photoinduced [2 + 2] cycloaddition reaction of the 14‐membered macrocyclic tetrathioether 7 containing two 1,2‐dicyano‐1,2‐dithioethene units in dichloromethane in 73% yield.