A method for selective deoxygenation of hydroxybenzaldehydes including, condensing syringaldehyde (3,5-dimethoxy-4-hydroxybenzaldehyde) and a functionalized phenylacetic acid with at least one first base and at least one anhydride to produce an arylcinnamic acid, decarboxylating of said arylcinnamic acid with at least one decarboxylation catalyst at temperatures ranging from about 30° C. to 200° C. or thermally at temperatures ranging from about 100° C. to 350° C. to produce a first stilbene, hydrodeoxygenating the stilbene by conversion to a sulfonate in the presence of at least one second base in water or at least one organic solvent to yield a sulfonate reducing the sulfonate(s) with a reductive elimination catalyst to produce a second stilbene, and reacting the second stilbene with a hydrolyzing agent to generate a polyphenol.
                            一种选择性去氧化羟基
苯甲醛的方法,包括将
丁香醛(3,5-二甲氧基-
4-羟基
苯甲醛)与至少一种第一碱和至少一种酸酐反应,生成芳基
肉桂酸,将所述芳基
肉桂酸与至少一种脱羧催化剂在温度范围从约30°C至200°C或在温度范围从约100°C至350°C下脱羧,生成第一倍半
甲苯,将倍半
甲苯在至少一种第二碱的存在下转化为
磺酸酯,在
水中或至少一种有机溶剂中进行
水合反应,得到
磺酸酯,用还原消除催化剂还原
磺酸酯,生成第二倍半
甲苯,将第二倍半
甲苯与
水解剂反应,生成多
酚。