Chemodivergent hydrogenolysis of eucalyptus lignin with Ni@ZIF-8 catalyst
作者:Xue Liu、Helong Li、Ling-Ping Xiao、Run-Cang Sun、Guoyong Song
DOI:10.1039/c8gc03511c
日期:——
Chemodivergent hydrogenolysis of eucalyptus biomass leading to 4-propanol- or 4-propyl-substituted phenols, together with a well-preserved carbohydrate component, was achieved by using Ni@ZIF-8 catalyst.
Provided are a cooling agent having an excellent TRPM8 activating action, a TRPM8 activator, a method for imparting cooling sensation, and a novel compound useful for imparting cooling sensation. Disclosed is a cooling agent comprising, as an active ingredient, a compound represented by the following formula (1):
wherein R
1
represents a hydrogen atom; R
2
represents a hydrogen atom, a hydroxyl group, or an alkoxy group having from 1 to 3 carbon atoms; R
3
represents a hydrogen atom or a hydroxyl group; R
4
represents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, an alkenyl group having from 2 to 6 carbon atoms, or an alkoxy group having from 1 to 3 carbon atoms; R
5
represents a hydrogen atom or an alkoxy group having from 1 to 3 carbon atoms; and R
6
represents a hydrogen atom, a hydroxyl group, an alkoxy group having from 1 to 14 carbon atoms, an alkoxyalkoxy group having from 2 to 12 carbon atoms in total, a cycloalkoxy group having from 3 to 12 carbon atoms, an aryloxy group having from 6 to 12 carbon atoms, an aralkyloxy group having from 7 to 14 carbon atoms in total, or an alkanoyloxy group having from 2 to 12 carbon atoms in total.
Provided are a cooling agent having an excellent TRPM8 activating action, a TRPM8 activator, a method for imparting cooling sensation, and a novel compound useful for imparting cooling sensation. Disclosed is a cooling agent comprising, as an active ingredient, a compound represented by the following formula (1):
wherein R1 represents a hydrogen atom; R2 represents a hydrogen atom, a hydroxyl group, or an alkoxy group having from 1 to 3 carbon atoms; R3 represents a hydrogen atom or a hydroxyl group; R4 represents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, an alkenyl group having from 2 to 6 carbon atoms, or an alkoxy group having from 1 to 3 carbon atoms; R5 represents a hydrogen atom or an alkoxy group having from 1 to 3 carbon atoms; and R6 represents a hydrogen atom, a hydroxyl group, an alkoxy group having from 1 to 14 carbon atoms, an alkoxyalkoxy group having from 2 to 12 carbon atoms in total, a cycloalkoxy group having from 3 to 12 carbon atoms, an aryloxy group having from 6 to 12 carbon atoms, an aralkyloxy group having from 7 to 14 carbon atoms in total, or an alkanoyloxy group having from 2 to 12 carbon atoms in total.