Synthesis of acenes and hydroxy-acenes
View Patent ↗A method comprising reducing an acenequinone to form an acenepolyhydrodiol by exposing the acenequinone to a reducing environment comprising an alkoxyaluminate.
1. A method, comprising:
reducing an acenequinone to form an acenepolyhydrodiol therefrom by exposing said acenequinone to a reducing environment comprising an alkoxyaluminum hydride.
2. The method recited in claim 1 , wherein said alkoxyaluminum hydride comprises lithium tri-tert-butoxyaluminohydride.
3. The method recited in claim 1 , further comprising reducing said acenepolyhydrodiol to form an acene therefrom by exposing said acenepolyhydrodiol to a second reducing environment comprising a reducing agent of stannous chloride or potassium iodide.
4. The method recited in claim 3 , wherein said second reducing environment has less that 1 wt % of said alkoxyaluminum hydride.
5. The method recited in claim 3 , wherein exposure to said second reducing environment includes incubating a solution containing said stannous chloride and said acenepolyhydrodiol for at least about 30 minutes.
6. The method recited in claim 3 , wherein said acene is an asymmetrically hydroxy-substituted acene, wherein at most one hydroxyl group is covalently bound per individual benzene ring of said hydroxy-substituted acene.
7. The method recited in claim 3 , wherein said acene comprises from three to eight benzene rings.
8. The method recited in claim 6 , wherein said hydroxy-substituted acene is a hydroxy-substituted pentacene.
9. The method recited in claim 8 , wherein said at most one hydroxyl group of said asymmetrically hydroxy-substituted pentacene is covalently bound at one of a 4, 5, 6, 7 or 8 non-fusion carbon ring positions.
10. The method recited in claim 1 , further comprising reducing a para-substituted said acenepolyhydrodiol into an asymmetrically hydroxy-substituted acene by heating said acenepolyhydrodiol in an inert atmosphere.
11. The method of claim 10 , wherein said inert atmosphere comprises argon.
12. The method recited in claim 10 , wherein said heating comprises maintaining a temperature in a range from about 250 to about 300° C.
13. The method recited in claim 1 , wherein said acenequinone comprises a pentacenequinone.
14. The method recited in claim 1 , wherein said acenequinone comprises 6, 13 pentacenequinone.
15. The method recited in claim 1 , further including manufacturing an active device, including:
providing a substrate; and
forming a semiconductive matrix on said substrate, wherein said semiconductive matrix includes said acenepolyhydrodiol formed by said reducing of said acenequinone.
16. The method of claim 15 , wherein forming said semiconductive matrix comprises depositing a solution comprising said acenepolyhydrodiol on said substrate.
17. The method of claim 16 , wherein forming said semiconductive matrix further comprises reducing said acenepolyhydrodiol to an acene.
18. The method of claim 16 , wherein forming said semiconductive matrix further comprises heating said acenepolyhydrodiol to form an asymmetrically hydroxy-substituted.
19. The method of claim 1 , wherein said alkoxyaluminum hydride is a lithium alkoxyaluminum hydride.