Benzo[2,1-b:3,4-b]dipyrrole, 1,8-dihydro- (9CI) synthesis

8synthesis methods

Product Name:Benzo[2,1-b:3,4-b]dipyrrole, 1,8-dihydro- (9CI)
CAS Number:112149-08-3
Molecular formula:C10H8N2
Molecular Weight:156.18

1141727-57-2
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Benzo[2,1-b:3,4-b]dipyrrole, 1,8-dihydro- (9CI)

112149-08-3
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Yield: 35%

Reaction Conditions:

with (bis(N-methylimidazol-2-yl)methane)dicarbonylrhodium(I) tetraphenylborate in tetrahydrofuran at 60;

Steps:

1.3 Sub 1-II-1 synthesis
Said Sub 1-I-1 obtained in the above synthesis (43.3g, 277.2mmol) was dissolved in tetrahydrofuran (dry and deoxygenated THF) in a round bottom flask , (bis(N-methylimidazol-2-yl)methane)dicarbonylrhodium(I) tetraphenylborate ([Rh(bim)(CO)₂BPh₄], (bim=bis(N-methylimidazol-2-yl)methane)) (36.28g, 55.4mmol) added at 60 °C and stirred. When reaction is completed with a compound formed after a silica gel column (silicagel column) the products and recrystallization 15.16g a obtained (yield: 35%).

References:

Duksan Neolux Co., Ltd;Om, Gayoung;Choi, Yeon - Hee;Phyan, Ji-hoon;Jeong, Ho Young;Park, Jeong-hwan;Lee, Gyu Min KR2015/33329, 2015, A Location in patent:Paragraph 0113; 0115; 0120; 0121

Ethenamine, 2,2'-(2,3-dinitro-1,4-phenylene)bis[N,N-dimethyl-, (E,E)- (9CI)

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112149-08-3
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References

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References

71173-22-3 Synthesis

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References

15155-41-6
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112149-08-3
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