4,5,9,10-Tetrabromoisochromeno[6,5,4-def]isochromene-1,3,6,8- tetraone synthesis
- Product Name:4,5,9,10-Tetrabromoisochromeno[6,5,4-def]isochromene-1,3,6,8- tetraone
- CAS Number:299962-88-2
- Molecular formula:C14Br4O6
- Molecular Weight:583.76
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Yield: 100%
Reaction Conditions:
with fuming sulphuric acid;sulfuric acid;bromine at 140; for 672 h;
Steps:
The synthesis of NDI-AQ (1) was achieved by reacting 1,4,5,8-naphthalenetetracarboxylic dianhydride (NDA) with 5.3 equiv ofBr2 in a mixture of sulfuric acid and oleum (v:v, 4:1) at 140 C for4 weeks. 2,3,6,7-Tetrabromonaphthalene diimide (3) was preparedover two steps by the reaction of 2 and 4 equiv of n-octylamine inrefluxing acetic acid for 30 min to give 2,3,6,7-tetrabromo-4,8-bis(octylcarbamoyl) naphthalene-1,5-dicarboxylic acid, whichwas further treated with excess PBr3 in refluxing toluene for 12 hto afford 3 in 31% overall yield.1
References:
Bobe, Sharad R.;Bhosale, Sidhanath V.;Jones, Lathe;Puyad, Avinash L.;Raynor, Aaron M.;Bhosale, Sheshanath V. [Tetrahedron Letters,2015,vol. 56,# 33,p. 4762 - 4766] Location in patent:supporting information
81-30-1
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846-20-8
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![4,9-DibroMoisochroMeno[6,5,4-def]isochroMene-1,3,6,8-tetraone](/CAS/GIF/83204-68-6.gif)
83204-68-6
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299962-88-2
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