Application to Synthesis of Substituted Acenes

Acenes such as pentacene are organic semiconductors, and it is well known that their performance is comparable to that of amorphous silicon. Usually, the advantage of organic materials is their solubility in organic solvent. A low-cost printing method can be used for the preparation of devices. However, unfortunately, pentacene is not soluble in organic solvent at ambient temperature. The introduction of substituents 

AROMATIC RING CONSTRUCTION FROM ZIRCONOCENES AND TITANOCENES 

---