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四氫吡喃（THP）是由一個含有五個碳原子和一個氧原子的飽和六元環(huán)組成的有機(jī)化合物。它被命名為吡喃，它包含兩個雙鍵，并且可以通過添加四個氫而產(chǎn)生。在2013，其優(yōu)選的IUPAC名稱被確立為OxAn。化合物為無色揮發(fā)性液體，但不清楚。然而，四氫吡喃衍生物更為常見。由醇和3,4-二氫吡喃反應(yīng)得到的2-四氫吡喃(THP-)醚在有機(jī)合成中通常用作保護(hù)基。此外，四氫吡喃環(huán)體系，即五個碳原子和一個氧，是吡喃糖如葡萄糖的核心。在氣相中，THP存在于其最低能量Cs對稱椅構(gòu)象中。

按化學(xué)元素
Bx
Cx
Nx
Ox
Fx
Six
Px
Sx
Clx
Brx
Ix
按關(guān)鍵基團(tuán)： 二氟苯并二氫吡喃 (10) 氟苯并二氫吡喃 (17) 苯并二氫吡喃胺 (4) 四氫吡喃胺 (196) 四氫吡喃苯 (1) 四氫吡喃吡唑 (7) 四氫吡喃并吡唑 (5) 四氫吡喃羥基 (7) 四氫吡喃羧酸及衍生物 (8) 四氫吡喃羧酸酯 (16) 四氫吡喃酮 (153) 四氫吡喃鹽酸鹽 (3) 四氫吡喃吲唑 (1) 羥甲基四氫吡喃 (8) 氟苯并二氫吡喃 (33) 二氟苯并二氫吡喃 (16) 更多
母核： 芳基 (705) 含氟砌塊 (208) 磷 (2) 吡唑 (60) 吡啶 (141) 硝基 (57) 吲唑 (44) 咪唑 (14) 哌啶 (91) 吡喃 (3) 苯并噻吩 (1) 三氮唑 (9) 吡咯 (4) 苯并咪唑 (6) 吡嗪 (7) 螺環(huán) (177) 吲哚啉 (37) 吡咯烷 (60) 吖丁啶中間體 (30) 環(huán)氧化合物 (4) 更多
官能團(tuán)： 酚 (56) 醚 (703) 醇 (540) 酮 (144) 其他芳香雜環(huán)化合物 (201) 炔基 (26) 脂環(huán)烴 (11) 磺酸 (2) 其它脂肪雜環(huán)化合物 (13) 溴代物 (229) 氯代物 (207) 酰胺 (351) 酯 (339) 胺 (774) 肟 (5) 羧酸 (270) 磺酸鹽 (20) 腈 (103) 三氟甲基 (60) 烯基 (90) 硫化物 (30) 碘化物 (73) 磺酰胺 (6) 醛 (67) 酸酐 (21) 肼中間體 (14) 羧酸鹽 (13) 酰氯 (6) 更多
按純度： 99+% 99% 98+% 98% 97+% 97% 96+% 96% 95+% 95% 93% 90+% 90%
按分子量： 0-100 100-200 200-300 300-400 400-500 500-600 600-700 700-800 800-900 900-1000 1000+
按化學(xué)元素： CKNOS CNOP CClN CBLiNO CINOS CFOS CBrFO COSSi CClFO CBFO CBO CBFKO COSe CBrO CO.Cl CClO CBOS CNOS CClgO CCuNOS C CFO CClNNaO CClNS CBrNOS CBClO CCeO CBrClNO CClNO CBrFNO CNNaOS COS.Na CCrO CClOSe CBrNO COP CBrINO CINO CI CBFNO CClFNO CNNaO CCaO CBNO COS COSi CClNOS CLiO CFINO CClOS CNSSn CNO CFKO CBr COTe CBrClO CNaO CNaOS CCuO CO CClINO CKOS CFNOS CBrClNOS CBClNO CN CFNO CCuNNaO CIO 更多
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