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I.B.1.d.5.

List of 1,3-hydrogen shift tautomers

formula molecule tautomer type
name casno sketch name casno sketch
C3H4 allene 463490 sketch of propyne 74997 sketch of CC
C3H4O2 propanedial 542789 sketch of β–Propiolactone 57578 sketch of CC
C3H6O Oxetane 503300 sketch of Propanal 123386 sketch of CC
C3H6O2 1,3-Dioxolane 646060 sketch of Ethyl formate 109944 sketch of CC
C4H4 Butatriene 2873509 sketch of 1-Buten-3-yne 689974 sketch of CC
C4H6 Methylenecyclopropane 6142730 sketch of 1-Methylcyclopropene 3100047 sketch of CC
C4H6 1,2-Butadiene 590192 sketch of 2-Butyne 503173 sketch of CC
C4H6 1-Methylcyclopropene 3100047 sketch of 1,2-Butadiene 590192 sketch of CC
C4H6 1,2-Butadiene 590192 sketch of 1,3-Butadiene 106990 sketch of CC
C4H6 Cyclobutene 822355 sketch of 1,3-Butadiene 106990 sketch of CC
C4H6 1,2-Butadiene 590192 sketch of 1-Butyne 107006 sketch of CC
C4H6O Furan, 2,3-dihydro- 1191997 sketch of Vinyl ether 109933 sketch of CC
C4H6O cis-2-butenal 15798648 sketch of Furan, 2,5-dihydro- 1708298 sketch of CC
C4H6O Furan, 2,5-dihydro- 1708298 sketch of Furan, 2,3-dihydro- 1191997 sketch of CC
C4H6O2 γ–Butyrolactone 96480 sketch of 2-Propenoic acid, methyl ester 96333 sketch of CC
C4H6S Thiophene, 2,5-dihydro- 1708323 sketch of Thiophene, 2,3-dihydro- 1120598 sketch of CC
C4H6S Thiophene, 2,3-dihydro- 1120598 sketch of Divinyl sulfide 627510 sketch of CC
C4H7Cl 2-Butene, 2-chloro-, (Z)- 4628211 sketch of 1-Butene, 2-chloro- 2211703 sketch of CC
C4H7Cl 2-Butene, 2-chloro-, (E)- 4894615 sketch of 1-Butene, 2-chloro- 2211703 sketch of CC
C4H7Cl 1-Butene, 4-chloro- 927731 sketch of 2-Butene, 1-chloro- 591979 sketch of CC
C4H7Cl 2-Butene, 2-chloro-, (E)- 4894615 sketch of 1-Butene, 3-chloro- 563520 sketch of CC
C4H7Cl 2-Butene, 2-chloro-, (Z)- 4628211 sketch of 1-Butene, 3-chloro- 563520 sketch of CC
C4H7Cl (Z)-1-Chloro-1-butene 7611861 sketch of 2-Butene, 1-chloro- 591979 sketch of CC
C4H7Cl (E)-1-Chloro-1-butene 7611872 sketch of 2-Butene, 1-chloro- 591979 sketch of CC
C4H8 cyclobutane 287230 sketch of 1-Butene 106989 sketch of CC
C4H8 2-Butene, (E)- 624646 sketch of 1-Butene 106989 sketch of CC
C4H8O Butanal 123728 sketch of Furan, tetrahydro- 109999 sketch of CC
C4H8O Furan, tetrahydro- 109999 sketch of Ethene, ethoxy- 109922 sketch of CC
C4H8O2 1,3-Dioxolane, 2-methyl- 497267 sketch of Ethyl acetate 141786 sketch of CC
C4H9 Isobutyl radical 4630459 sketch of Tert-butyl radical 1605738 sketch of CC
C5H10 1-Butene, 2-methyl- 563462 sketch of 2-Butene, 2-methyl- 513359 sketch of CC
C5H10 Cyclopropane, 1,1-dimethyl- 1630940 sketch of 1-Butene, 2-methyl- 563462 sketch of CC
C5H10 Cyclopentane 287923 sketch of 1-pentene 109671 sketch of CC
C5H10 2-Pentene, (E)- 646048 sketch of 1-pentene 109671 sketch of CC
C5H10S 3-Ethylthio-1-propene 5296628 sketch of 2H-Thiopyran, tetrahydro- 1613510 sketch of CC
C5H10S 3-Ethylthio-1-propene 5296628 sketch of Thiophene, tetrahydro-3-methyl- 4740005 sketch of CC
C5H5NO 3(6H)-Pyridinone 9000015 sketch of 3(2H)-Pyridinone 9000004 sketch of CC
C5H5NO 3(4H)-Pyridinone 9000026 sketch of 3(2H)-Pyridinone 9000004 sketch of CC
C5H5NO 3(4H)-Pyridinone 9000026 sketch of 3(6H)-Pyridinone 9000015 sketch of CC
C5H5NO 2(3H)-Pyridinone 9000048 sketch of 2(5H)-Pyridinone 9000037 sketch of CC
C5H5NO 2(1H)-Pyridinone 72762006 sketch of 2(5H)-Pyridinone 9000037 sketch of CC
C5H5NO 2(1H)-Pyridinone 72762006 sketch of 2(3H)-Pyridinone 9000048 sketch of CC
C5H5NO 4(1H)-Pryidinone 9000060 sketch of 4(3H)-Pryidinone 9000059 sketch of CC
C5H6 3-Penten-1-yne, (Z)- 1574409 sketch of 1,3-Cyclopentadiene 542927 sketch of CC
C5H7N (E)-2-Pentenenitrile 26294984 sketch of (E)-3-Pentenenitrile 16529661 sketch of CC
C5H7N (E)-2-Pentenenitrile 26294984 sketch of Cyclobutanecarbonitrile 4426113 sketch of CC
C5H8 1,2-Butadiene, 3-methyl- 598254 sketch of 1,3-Butadiene, 2-methyl- 78795 sketch of CC
C5H8 1,3-Pentadiene, (E)- 2004708 sketch of 1,4-Pentadiene 591935 sketch of CC
C5H8 1,3-Pentadiene, (E)- 2004708 sketch of 1,2-Pentadiene 591957 sketch of CC
C6H10 Cyclopentene, 3-methyl- 1120623 sketch of 1,5-Hexadiene 592427 sketch of CC
C6H10 1,4-Hexadiene, (Z)- 7318674 sketch of Cyclopentene, 4-methyl- 1759815 sketch of CC
C6H10 1,3-Hexadiene, (Z)- 14596920 sketch of Cyclopentene, 3-methyl- 1120623 sketch of CC
C6H10 1,4-Hexadiene, (E)- 7319008 sketch of 2,4-Hexadiene, (E,E)- 5194514 sketch of CC
C6H10 Cyclopentene, 4-methyl- 1759815 sketch of Cyclopentene, 3-methyl- 1120623 sketch of CC
C6H10 Cyclopentene, 3-methyl- 1120623 sketch of Cyclopentene, 1-methyl- 693890 sketch of CC
C6H10 1,4-Hexadiene, (E)- 7319008 sketch of 1,5-Hexadiene 592427 sketch of CC
C6H10 1,3-Hexadiene, (E)- 20237347 sketch of 1,4-Hexadiene, (E)- 7319008 sketch of CC
C6H12 Pentane, 3-methylene- 760214 sketch of 2-Pentene, 3-methyl-, (E)- 616126 sketch of CC
C6H12 Cyclobutane, ethyl- 4806615 sketch of 1-Hexene 592416 sketch of CC
C6H12 2-Butene, 2,3-dimethyl- 563791 sketch of 1-Butene, 2,3-dimethyl- 563780 sketch of CC
C6H12 1-Hexene 592416 sketch of Cyclohexane 110827 sketch of CC
C6H12 1-Hexene 592416 sketch of Cyclopentane, methyl- 96377 sketch of CC
C6H8 1,4-Cyclohexadiene 628411 sketch of 1,3-Cyclohexadiene 592574 sketch of CC
C6H8 3-Methylenecyclopentene 930267 sketch of Bicyclo[2.1.1]hex-2-ene 822413 sketch of CC
C6H8 Bicyclo[3.1.0]hex-2-ene 694019 sketch of 1,3-Cyclohexadiene 592574 sketch of CC
C6H8 1,3,5-Hexatriene, (Z)- 2612466 sketch of 3-Methylenecyclopentene 930267 sketch of CC
C2H2O ethynol 32038792 sketch of Ketene 463514 sketch of CO
C3H4O allenol 9000071 sketch of Acrolein 107028 sketch of CO
C3H4O2 2-Propenoic acid 79107 sketch of β–Propiolactone 57578 sketch of CO
C3H4O2 propenalol 9000128 sketch of propanedial 542789 sketch of CO
C3H6O 2-Propen-1-ol 107186 sketch of Propylene oxide 75569 sketch of CO
C4H6OS 4,5-dihydrothiophene-3-ol 9000082 sketch of Dihydro-3-(2H)-thiophenone 1003049 sketch of CO
C4H6OS 2,5-dihydrothiophene-3-ol 9000093 sketch of Dihydro-3-(2H)-thiophenone 1003049 sketch of CO
C4H6OS 4,5-dihydrothiophene-2-ol 9000106 sketch of Dihydro-2-(3H)-thiophenone 1003107 sketch of CO
C4H8O Cyclobutanol 2919235 sketch of Butanal 123728 sketch of CO
C5H5NO 4(3H)-Pryidinone 9000059 sketch of 4-Pyridinol 626642 sketch of CO
C5H5NO 3(2H)-Pyridinone 9000004 sketch of 3-Pyridinol 109002 sketch of CO
C5H5NO 3(4H)-Pyridinone 9000026 sketch of 3-Pyridinol 109002 sketch of CO
C5H5NO 2(3H)-Pyridinone 9000048 sketch of 2-Pyridinol 109104 sketch of CO
C5H5NO 2(1H)-Pyridinone 72762006 sketch of 2-Pyridinol 109104 sketch of CO