| abstract |
Phosphorus-containing hydroquinone derivatives of the general formula (1) useful as reactive flame retardants or intermediate raw materials for the production of phosphorus-containing epoxy resins wherein R?1 and R2¿ are each independently linear or branched alkyl, or alternatively R?1 and R2¿ may be united to form a ring; X is oxygen or sulfur; and Y and Z are each hydrogen, hydroxyl, linear or branched alkyl, aralkyl, alkoxy, allyl, aryl, or cyano, or alternatively Y and Z may be united to form a ring. |