5-甲氧基-3-苯基苯并呋喃

2-diphenylphosphoryl-1,4-dimethoxybenzene

4-ethoxy-4-methoxycyclohexa-2,5-dien-1-one

4-methoxy-4-propoxycyclohexa-2,5-dien-1-one

4-methoxy-4-propan-2-yloxycyclohexa-2,5-dien-1-one