The synthesis of light-harvesting arrays requires modular pigment building blocks. Boron-dipyrromethene dyes are well-suited for the photochemical sensitization of free base or metalloporphyrins. Direct access to borondipyrromethene dyes bearing reactive substituents is provided by a simple synthetic route involving two one-flask reactions. Reaction of pyrrole or 2-methylpyrrole with an aldehyd...

Colour, a vital constituent of food, is indispensable to the modern day consumer as a means for the rapid identification and ultimate acceptance of food. A number of reviews concerning the toxicology of natural and synthetic dyes, especially those used in food, have appeared since the dyestuffs became potential suspects for causing cancer. A large number of natural or synthetic dyes have been r...

The aim of this study is to select an efficient, inexpensive adsorbent for the removal synthetic dyes from wastewater textile industry. We used waste products obtained during regeneration ion-exchange resins formed highly saline aqueous solutions calcium and magnesium that do not require pre-treatment, as well magnesite minerals contain traces impurities, such Fe, Zn, Co, Cd, Mn. spectrophotome...