Table 1 Holocellulose and lignin pyrolysis products sorted into categories

Furans

2-Hydroxymethylfuran

3-Hydroxymethylfuran

2-Furancarboxylic acid

2,3-Dihydrofuran-2,3-diol

2-Furyl-hydroxymethylketone

5-Hydroxymethyl-2-furaldehyde

Monomers

Z- and E-coniferyl alcohols

Z-and E-sinapyl alcohols

Pyranones

3-Hydroxy-(2H)-pyran-2-one

3-Hydroxy-(4H)-pyran-4-one

5-Hydroxy-2H-pyran-4(3H)-one

3-Hydroxy-6-methyl-(2H)-pyran-2-one

2-Methyl-3-hydroxy-(4H)-pyran-4-one

2-Hydroxymethyl-2,3-dihydropyran-4-one

3,5-Dihydroxy-2-methyl-(4H)-pyran-4-one (2TMS)

2-Hydroxymethyl-5-hydroxy-2,3-dihydro-(4H)-pyran-4-one

2,3,5-Trihydroxy-4H-pyran-4-one

Altered side chain

Guaiacol

4-Methylguaiacol

4-Ethylguaiacol

Syringol

4-Vinylguaiacol

4-Methylsyringol

4-Ethylsyringol

4-Vinylsyringol

Z-, E- and iso-eugenol

Z-and E-4-isopropenylsyringol

Vanillylpropanol

Syringylpropanol

Hydroxybenzenes

1,2,3-Trihydroxybenzene

1,2,4-Trihydroxybenzene

Oxidised

Vanillin

Acetovanillone

Syringaldehyde

Acetosyringone

Coniferylaldehyde

Sinapylaldehyde

4-Hydroxy benzoic acid

Vanillic acid

Syringic acid

3,4-Dihydroxy-5-methoxy benzoic acid

Cyclopentenones

1-Hydroxy-1-cyclopenten-3-one

2-Hydroxy-1-cyclopenten-3-one

Z-and E- 2,3-dihydroxy-cyclopent-2-enone

2-Hydroxymethyl-3-methy-2-cyclopentenone

1-Hydroxy-2-methyl-1-cyclopenten-3-one

1-Methy-2-hydroxy-1-cyclopenten-3-one

2-Methyl-3-hydroxymethyl-2-cyclopentenone

Z- and E- 2,3-dihydroxy-cyclopent-2-enone

3-Hydroxy-2-hydroxymethyl-2-cyclopentenone

3-Hydroxy-2-(hydroxymethyl) cyclopenta-2,4-dienone

Demethylated/demethoxylated

4-Methylcatechol

4-Ethylcatechol

3-Methoxy-1,2-benzenediol

5-Methyl-3-methoxy-1,2-benzenediol

5-Vinyl-3-methoxy-1,2-benzenediol

5-Propyl-3-methoxy-1,2-benzenediol

Coumaryl alcohol (2 TMS)

Trihydroxy cinnamic alcohol (3TMS)

3,4-Dihydroxy cinnamyl alcohol (3TMS)

Z-2-methoxy-3,4-dihydroxy cinnamic alcohol (3TMS)

E-2-Methoxy-3,4-dihydroxy cinnamic alcohol (3TMS)

Anhydrosugars

1,4:3,6-dianhydro-α-d-glucopyranose

1,4-anydro-d-galactopyranose

1,6-anydro-d-galactopyranose

1,4-anydro-d-galactopyranose

1,6-anydro-beta-d-glucopyranose

1,4-anhydro-d-glucopyranose

1,6-anydro-beta-d-glucofuranose