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6-氨基-1,4-苯并二噁烷的合成
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作者 崔乐超 李栋 《山东化工》 CAS 2021年第21期30-31,34,共3页
以邻苯二酚为原料,在极性溶剂中,以碳酸钾为缚酸剂,与1,2-二溴乙烷发生取代反应,生成1,4-苯并二噁烷;1,4-苯并二噁烷在浓硫酸中与硝酸发生硝化反应,生成6-硝基-1,4-苯并二噁烷;6-硝基-1,4-苯并二噁烷在质子性溶剂中,在锌粉和乙酸作用下... 以邻苯二酚为原料,在极性溶剂中,以碳酸钾为缚酸剂,与1,2-二溴乙烷发生取代反应,生成1,4-苯并二噁烷;1,4-苯并二噁烷在浓硫酸中与硝酸发生硝化反应,生成6-硝基-1,4-苯并二噁烷;6-硝基-1,4-苯并二噁烷在质子性溶剂中,在锌粉和乙酸作用下加氢还原得到6-氨基-1,4-苯并二噁烷。 展开更多
关键词 邻苯二酚 1 4-苯并二噁烷 6-氨基-1 4-苯并二噁烷
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Synthesis and Crystal Structure of Ethyl 2-(6-(1,3-Dioxo-4,5,6,7-tetrahydro-1H-isoindol-2(3H)-yl)-7-fluoro-3-oxo-2H-benzo[b][1,4]oxazin-4(3H)-yl) Butanoate
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作者 吴道新 罗斐贤 +4 位作者 莫洪波 王晓光 任叶果 SIMPSON Jim 黄明智 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2009年第5期585-589,共5页
The title compound ethyl 2-(6-(1,3-dioxo-4,5,6,7-tetrahydro-lH-isoindol-2(3H)- yl)-7-fluoro-3-oxo-2H-benzo[b][1,4]oxazin-4(3H)-yl) butanoate 3 was synthesized by the reaction of ethyl 2-(6-amino-7-fluoro-3-ox... The title compound ethyl 2-(6-(1,3-dioxo-4,5,6,7-tetrahydro-lH-isoindol-2(3H)- yl)-7-fluoro-3-oxo-2H-benzo[b][1,4]oxazin-4(3H)-yl) butanoate 3 was synthesized by the reaction of ethyl 2-(6-amino-7-fluoro-3-oxo-2H-benzo[b][1,4]oxazin-4(3H)-yl) butanoate with 4,5,6,7- tetraydrophthalic anhydride, and its structure was determined by X-ray single-crystal diffraction. The crystal belongs to the monoclinic system, space group P2 1/n with a = 9.3469(2), b = 16.7715(5), c = 13.7153(4) A, β= 104.9680(10)°, μ = 0.107 mm^-1, Mr = 430.42, V= 2077.08(10) ,A3, Z= 4, Dc = 1.376 g/cm3, F(000) = 904, T= 296(2) K, R = 0.0508 and wR = 0.1478. 展开更多
关键词 synthesis crystal structure ethyl 2-(6-amino-7-fluoro-3-oxo-2H-benzo[b][1 4]oxazin-4(3H)-yl) butanoate herbicidal protox inhibitors
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