Heteroatom containing cyclic dimers

摘要

The present invention provides cyclic dimers of alpha acids and polymers derived therefrom. Also provided are processes for preparing and methods of using the cyclic dimers and the polymers derived from the cyclic dimers.

主权项

1. A compound of Formula (I): wherein: X1 and X2 are chosen from nitrogen and oxygen, provided that both X1 and X2 are not nitrogen; R1, R2, R3, R4, and R5 are hydrogen; R6 is lower chain alkyl; R7 is optionally present, when present it is chosen from hydrogen and lower chain alkyl; Z is chosen from sulfur, sulfone, sulfoxide, and selenium; and n is an integer from 1 to 10; provided that when Z is sulfur and R1 and R3 are hydrogen, n is not 1.