3,4-dihydro-1H-spiro[naphthalene-2,1'-thienochromene] derivative and synthesis method and application thereof
A synthesis method and technology of derivatives, which are applied in the fields of botanical equipment and methods, applications, biocides, etc., to achieve the effects of novel structure, wide application range and high yield
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Embodiment 1
[0038] At 25°C, add coumarin derivative 1a (309mg, 1.1mmol), 2-bromotetralone 2a (224mg, 1mmol), and 5ml of acetonitrile into a 10ml reaction flask in turn, followed by addition of hydrogen Sodium (48mg, 1.2mmol), stirred for 12h. Then the solvent was removed under reduced pressure, and column chromatography was carried out with a mixture of petroleum ether and ethyl acetate (the volume ratio of petroleum ether and ethyl acetate was 6:1) as eluent to obtain 3,4-dihydro- 1H-spiro[naphthalene-2,1'-thienochromene]-1,4'-dione derivative II (225 mg, yield 53%). The reaction equation is as follows:
[0039]
[0040] The structure of the 3,4-dihydro-1H-spiro[naphthalene-2,1'-thienochromene]-1,4'-dione derivative II obtained above was identified by nuclear magnetic resonance and high-resolution mass spectrometry, 1 H NMR (600MHz, CDCl 3 )δ8.14(d, J=7.8Hz, 1H), 7.63(dd, J=11.5, 4.1Hz, 1H), 7.60(t, J=7.3Hz, 1H), 7.49(d, J=8.3Hz, 1H), 7.41(t, J=7.6Hz, 1H), 7.32(dt, J=7.5, 5.2Hz, 4...
Embodiment 2
[0042] At 25°C, add coumarin derivative 1b (346mg, 1.1mmol), 2-bromonalone 2a (224mg, 1mmol), and 5ml of acetonitrile into a 10ml reaction flask in turn, followed by addition of hydrogen Sodium (48mg, 1.2mmol), stirred for 12h. Then the solvent was removed under reduced pressure, and the mixed solution of petroleum ether and ethyl acetate (the volume ratio of petroleum ether and ethyl acetate was 6:1) was used as eluent to carry out column chromatography to obtain 3,4-dihydro- 1H-spiro[naphthalene-2,1'-thienochromene]-1,4'-dione derivative III (202 mg, yield 44%). The reaction equation is as follows:
[0043]
[0044] The structure of the 3,4-dihydro-1H-spiro[naphthalene-2,1'-thienochromene]-1,4'-dione derivative III obtained above was identified by nuclear magnetic resonance, 1 H NMR (600MHz, CDCl 3 )δ8.14(d, J=7.8Hz, 1H), 7.65(dd, J=11.5, 4.2Hz, 1H), 7.60(t, J=7.5Hz, 1H), 7.50(d, J=8.4Hz, 1H), 7.41(dd, J=14.1, 7.3Hz, 2H), 7.31(d, J=7.8Hz, 2H), 7.26–7.20(m, 2H), 7.08–7...
Embodiment 3
[0046] At 25°C, add coumarin derivative 1c (346mg, 1.1mmol), 2-bromonalone 2a (224mg, 1mmol), and 5ml of acetonitrile into a 10ml reaction flask in turn, followed by addition of hydrogen Sodium (48mg, 1.2mmol), stirred for 12h. Then the solvent was removed under reduced pressure, and the mixed solution of petroleum ether and ethyl acetate (the volume ratio of petroleum ether and ethyl acetate was 6:1) was used as eluent to carry out column chromatography to obtain 3,4-dihydro- 1H-spiro[naphthalene-2,1'-thienochromene]-1,4'-dione derivative IV (243 mg, yield 53%). The reaction equation is as follows:
[0047]
[0048] The structure of the 3,4-dihydro-1H-spiro[naphthalene-2,1'-thienochromene]-1,4'-dione derivative IV obtained above was identified by nuclear magnetic resonance, 1 H NMR (600MHz, CDCl 3 )δ8.17–8.12(m,1H),7.67–7.59(m,2H),7.52–7.48(m,1H),7.43(t,J=7.6Hz,1H),7.32(dd,J=11.3, 4.5Hz, 2H), 7.28–7.23(m, 2H), 7.12–7.08(m, 1H), 7.05(t, J=2.0Hz, 1H), 6.94–6.90(m, 1H), 3...
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