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Molecules 2010, 15(8), 5473-5508; doi:10.3390/molecules15085473

Preparation of Tyrian Purple (6,6′-Dibromoindigo): Past and Present

*  and *
Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
* Authors to whom correspondence should be addressed.
Received: 18 June 2010 / Revised: 29 July 2010 / Accepted: 2 August 2010 / Published: 10 August 2010
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Over the past century, various synthetic approaches have been suggested to the most famous dye of antiquity, Tyrian purple (6,6′-dibromoindigo). These synthetic routes have been exhaustively surveyed and critically evaluated from the perspective of convenience, cost, safety and yield.
Keywords: 6,6’-dibromoindigo; Tyrian purple; synthesis 6,6’-dibromoindigo; Tyrian purple; synthesis
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Wolk, J.L.; Frimer, A.A. Preparation of Tyrian Purple (6,6′-Dibromoindigo): Past and Present. Molecules 2010, 15, 5473-5508.

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