Reaktion #565303

Reaktionsgleichung

1,4-bis(hydroxyethyl)terephthalate

ethyl phosphorodichloridate

→

BHET EOP

Lösungsmittel

methylene chloride

methylene chloride

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigeequipped with a funnel
2. 2
   workup.ADDITIONAfter addition
3. 3
   workup.STIRRINGthe mixture was stirred at room temperature for four hours

Vorschrift

Under an argon stream, 10 g of 1,4-bis(hydroxyethyl)terephthalate (BHET), 9.61 g of 4-dimethylaminopyridine (DMAP), and 70 mL of methylene chloride were placed in a 250 mL flask equipped with a funnel. The solution in the flask was cooled down to −40° C. with stirring, and a solution of 5.13 g of ethyl phosphorodichloridate (EOP) (distilled before use) in 20 mL of methylene chloride was added dropwise through the funnel. After addition was complete, the mixture was stirred at room temperature for four hours to form the homopolymer BHET-EOP.

Quelle