Methods for preparing benzodithiophenes

Details Methods for preparing benzodithiophenes Methods for preparing benzodithiophenes

2011-06-07

2011-06-07

Solola, Taofiq A (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07956199

ABSTRACT:
Methods of adding substituents to a benzodithiophene are disclosed. A benzodithiophene is reacted with a reagent to directly add the substituent to the benzene core of the benzodithiophene. This method eliminates steps from prior process and eliminates the need for hydrogenation, allowing for a safer and more scaleable process. The resulting benzodithiophenes are suitable for use in semiconductor polymers and have no loss of performance.

REFERENCES:
patent: 7332615 (2008-02-01), Huang et al.
patent: 7524922 (2009-04-01), Heeney et al.
patent: 2008/0102559 (2008-05-01), Ong et al.
patent: 2008/0103286 (2008-05-01), Ong et al.
patent: 2008/0146776 (2008-06-01), Liu et al.
patent: 1357163 (2006-05-01), None
patent: 2008011957 (2008-01-01), None
Pan et al., “Synthesis and Thin-Film Transistor Performance of Poly(4,8-didodecylbenzo[1,2-b:4,5-b′]dithiophene)”, Chem. Mater. 2006, 18, 3237-3241.
Beimling et al, “Synthesis of Benzo[1,2-b:4,5-b′]dithiophene and its 4,8-Dimethoxy and 4,8-Dimethyl Derivatives”, Chem. Ber. 119, 3198-3203 (1986).

Affiliated with

Also associated with

Rating

Methods for preparing benzodithiophenes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods for preparing benzodithiophenes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods for preparing benzodithiophenes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2655248