Patent ID: 11917911
Assignee: TAIZHOU UNIVERSITY
Field: Organic fine chemistry (Chemistry)
Classification: CPC H  C  Y | IPC C  H

Claim 7:
8. The method according to claim 7, wherein:
the dibromo electron-deficient heterocyclic unit is in a mole ratio of 1:(2.0-2.5) to the octylthiophene tin reagent;
and, the dibromo electron-deficient heterocyclic unit is in a mole ratio of 1:(0.1-0.2) to the catalyst;
and, the solvent in the step (1) comprises at least one selected from a group of dioxane, toluene, chlorobenzene and o-xylene;
and, the catalyst in the step (1) is at least one selected from a group of tetrakis (triphenylphosphine)palladium, tris (dibenzylideneacetone) dipalladium, and [1,1′-bis (diphenylphosphino) ferrocene] dichloropalladium (II);
and, the reacting in the step (1) is carried out under temperature of 100-200 degree Celsius (° C.) for a duration of 12-72 hours (h);
and, the solvent is distilled off from a reaction solution under reduced pressure in the step (1) after the reaction is finished, followed by separation by silica gel column chromatography to obtain the compound 2;
and, the compound 2 is in a mole ratio of 1:(2.0-3.0) to lithium diisopropylamide in the step (2);
and, the compound 2 is in a mole ratio of 1:(3.0-5.0) to alkyl tin chloride reagent in the step (2); and the solvent comprises at least one selected from a group of tetrahydrofuran, 2-methyltetrahydrofuran, ether and toluene in the step (2);
and, the alkyl tin chloride reagent in the step (2) is any one selected from a group of trimethyltin chloride, triethyltin chloride, trinpropyltinchloride, chlorotributyltin and chloro(trioctyl)stannane;
and, the compound 2 and lithium diisopropylamide in the step (2) are reacted at a temperature of −30° C.-−100° C. for a duration of 0.5-2.5 h; and, in the step (2), the reaction under room temperature is carried out for a duration of 3-20 h; and, in the step (2), after the reaction is finished, the reaction is quenched, followed by extraction and drying, then the solvent is distilled off from a reaction solution under reduced pressure to obtain the compound 3; and, the compound 3 is in a mole ratio of 1:(2.0-2.5) to the thiophene π-bridged aldehyde in the step (3);
and, the compound 3 is in a mole ratio of 1:(0.1-0.2) to the catalyst in the step (3);
and, the solvent in the step (3) comprises at least one of dioxane, toluene, chlorobenzene and o-xylene;
and, the catalyst in the step (3) is at least one selected from a group of tetrakis (triphenylphosphine)palladium, tris (dibenzylideneacetone) dipalladium, and [1,1′-bis (diphenylphosphino) ferrocene] dichloropalladium (II);
and, the reacting in step (3) is carried out under temperature of 100-200° C. for a duration of 12-72 h;
and, the solvent is distilled off from a reaction solution under reduced pressure in step (3) after a reaction is finished, followed by separation by silica gel column chromatography to obtain the dialdehyde compound;
and, the dialdehyde compound is in a mole ratio of 1:(5-7) to the dicyanoethyl rhodanine in step (4);
and, the catalyst is added in an amount of 0.4 to 1.0 milliliter per millimole (mL/mmol) of dialdehyde compound in the step (4);
and, the solvent in the step (4) comprises at least one selected from a group of chloroform, dichloromethane, toluene, tetrahydrofuran and acetic acid;
and, the catalyst in step (4) is at least one selected from a group of pyridine, DBU (1,8-diazabicycloundec-7-ene), piperidine, ammonium acetate and triethylamine;
and, the reacting in step (4) is carried out under temperature of 20-100° C. for a duration of 0.5-16 h;
and, after a reaction is finished in the step (4), the solvent is distilled off from a reaction solution under reduced pressure, followed by separation by silica gel column chromatography to obtain the small-molecule electron donor material.