C3H4O

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Related molecular formulas
C3H6O
C2H2O C3H4O C4H6O
C3H2O
C3H4 C3H4O2

C3H4O is a chemical formula that represents each of several actual and hypothetical compounds that differ in structure, but each consist of three atoms of carbon, four of hydrogen, and one of oxygen. The following compounds are among them:

Name CAS # Notes Structure
Oxetene, 2H-Oxete 287-25-2 Synthesized;[1] unstable.[2] Can be made by using light to cyclize acrolein.[3] File:C3H4Oisomer 12.png
2-Oxabicyclo[1.1.0]butane[4] 35553-05-0 File:C3H4Oisomer 13.png
Acrolein, 2-propenal 107-02-8 Forms from pollutants, burning, metabolism.[5] Cis and trans forms; cis form predominant.[5] File:C3H4Oisomer 01.png
Propa-1,2-dien-1-ol[6] 81788-96-7 Synthesized.[7] Tautomerizes "quantitatively" to acrolein above -50 °C.[7] File:C3H4Oisomer 04.png
Propargyl alcohol or 2-propyn-1-ol 107-19-7 "Mild, geranium odor"[8] Used in synthesis, as corrosion inhibitor, soil fumigant.[9] File:C3H4Oisomer 02.png
Methoxy ethyne, methoxyacetylene 6443-91-0
Prop-1-yn-1-ol,[10] 1-propynol[11] 6175-54-8
Methylketene or 1-propen-1-one[12] 6004-44-0 Synthesized.[13] Intermediate in acrolein pyrolysis.[14] Of astronomical interest.[13]
Methylene oxirane,[15] allene oxide 40079-14-9 Synthesized;[16] predicted (1968) to isomerize "readily" to cyclopropanone.[16][17][needs update]
Cyclopropanone 5009-27-8 Synthesized; unstable due to polymerization and ring-opening.[18] Derivatives used in synthesis, biology.[18]

Tautomer of 1-cyclopen-1-ol[citation needed]

File:C3H4Oisomer 08.png
Cycloprop-1-en-1-ol, cyclopropene alcohol[19] 81788-95-6 Tautomer of cyclopropanone; Not synthesized[citation needed] File:C3H4Oisomer 09.png
2-Cyclopropenol or 1-hydroxy-2-cyclopropene[dubious – discuss] 81788-94-5 Not synthesized[citation needed] File:C3H4Oisomer 10.png
1,2-Epoxypropene or 2-methyloxirene[20] 2835-41-8 Synthesized; unstable. Product of ionized diazoacetone; isomerizes "rapidly" to methylketene, acrolein, methoxyethyne, and/or 1-propynol.[21][22] File:C3H4Oisomer 11.png

References

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