5.3.2.6	(2Z,4E)-2-hydroxyhexa-2,4-dienedioate	-	
5.3.2.6	2-hydroxy-2,4-hexadienedioate	i.e. 2-hydroxymuconate	
5.3.2.6	2-hydroxy-2,4-pentadienoate	-	
5.3.2.6	2-hydroxymuconate	ketonization	
5.3.2.6	2-hydroxymuconate	the conjugated enol, 2-hydroxymuconate is an unusually stable dienol that is reportedly generated in the course of bacterial catabolism of catechol by the enzymes of the meta-fission pathway	
5.3.2.6	2-hydroxymuconate	-	
5.3.2.6	2-oxo-4(E)-hexenedioate	1,3-allylic isomerization	
5.3.2.6	2-oxo-4-hexenedioate	isomerization of unconjugated 2-oxo acids such as 2-oxo-4-hexenedioate, to its conjugated isomer via dienol intermediate 2-hydroxy-2,4-hexadienedioate, i.e. 2-hydroxymuconate	
5.3.2.6	2-oxo-4-hexenedioate	ketonization process via dienol intermediate 2-hydroxymuconate and with Pro1 as a general base, one-proton transfer mechanism	
5.3.2.6	2-oxo-4-hexenedioate	via dienol intermediate 2-hydroxymuconate