Synthesis and photochromism of some mono and bis (thienyl) substituted oxathiine 2,2-dioxides†
Stuart
Aiken, 
a
Christopher D.
Gabbutt,
a
B. Mark
Heron,
*a
Craig R.
Rice
a
and
Dimitrios
Zonidis
*a
a
Christopher D.
Gabbutt,
a
B. Mark
Heron,
*a
Craig R.
Rice
a
and
Dimitrios
Zonidis
*a
Abstract
1,2-Oxathiine 2,2-dioxides have been obtained from their respective 3,4-dihydro-4-dimethylamino precursors, for the first time, by a mild Cope elimination of the 4-dimethylamino function. The application of the 1,2-oxathiine 2,2-dioxide scaffold in materials chemistry is exemplified by the efficient P-type photochromism of the 5,6-bis(2,5-dimethyl-3-thienyl) substituted oxathiine 2,2-dioxides.
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