485
six-membered product appears as minor one because there is the presence of 1,
3-axial interaction. However, this type of effect can be minimized in five- membered
ring by ring contraction and appeared as kinetically most stable product [169].
There are two types of possible reaction mechanism for the formation of solketal:
Scheme 13 Generation-wise classification of glycerol acetalization
Catalytic Conversion of Biomass-Derived Glycerol to Value-Added Chemicals