2,6-Dibromo-4,8-bis[(2-ethylhexyl)oxy]-benzo[1,2-b:4,5-b']dithiophene

2.3 g of 4, 8-bis (2-ethyl-hexyloxy) benzo [1, 2-b: 4, 5-b '] dithiophene was weighed out in 10 g of dichloromethane DCM, A solution of 4.6 g of liquid bromine dissolved in 15 g of dichloromethane DCM was added dropwise to a round bottom flask and the ice bath was removed after the dropwise addition. The reaction was allowed to proceed at 10C for 24 hours until the solution color became lighter.Reaction process tracking: point plate after the raw material has been consumed, then stop the reaction.Product Refining: The solvent was distilled off with a water pump, the product was dissolved with n-hexane, anhydrous MgSO2.3 g of 4, 8-bis (2-ethyl-hexyloxy) benzo [1, 2-b: 4, 5-b '] dithiophene was weighed out in 10 g of dichloromethane DCM, 4.6 g of liquid bromine dissolved in 15 g of dichloromethane DCM was added dropwise to a round bottom flask under ice-cooling, and the ice bath was removed after the dropwise addition and the reaction was continued at 10C for 24 hours until the solution color became lighter.Reaction process tracking: point plate after the raw material has been consumed, then stop the reaction.Product refined: the solvent is distilled off with a pump, the product is dissolved with n-hexane, dried over anhydrous MgSO4, the solvent is removed, (2-ethyl-hexyloxy) benzo [1, 2-b: 4, 5-b '] & lt; / RTI & gt; as a white powder, 2 g of thiophene in a yield of 90percent.The ratio of 4, 8-bis (2-ethyl-hexyloxy) benzo [1, 2-b: 4, 5-b '] dithiophene, liquid bromine and solvent is 1: 2: 10.9.(0198) The compound (2) (5.58 g, 10 mmol) is dissolved in 100 mL of methylene chloride and put into ice water. 60 mL of a methylene chloride solution in which bromine (3.2 g, 20 mmol) is dissolved is slowly added thereto in a dropwise fashion. The reaction mixture is reacted for 5 hours until the bromine color disappears in air and recrystallized in hexane to provide a white solid compound (3) (5.5 g). (0199) The compound (3) shows the following Compound (2) (5.58 g, 10 mmol) was dissolved in 100 mL of methylene chloride, It puts into the icy water.To this was added bromine (3.2 g, 20 mmol)60 mL of methylene chloride solution is slowly added dropwise.The reaction mixture was allowed to react in air for 5 hours until the color of bromine disappeared, Recrystallization from hexane gave compound (3) (5.5 g) as a white solid.

Molecular Weight:604.5
XLogP3:12.2
Hydrogen Bond Acceptor Count:4
Rotatable Bond Count:14
Exact Mass:604.05030
Monoisotopic Mass:602.05235
Topological Polar Surface Area:74.9
Heavy Atom Count:32
Complexity:494
Undefined Atom Stereocenter Count:2
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes