Synthesis of hydroxyfluorene-carboxilic acid and esters thereof
申请人:Mandava Naga Bhushan
公开号:US10351504B1
公开(公告)日:2019-07-16
Methods of synthesizing phenanthrenequinone, 9-hydroxyfluorene-9-5 carboxylic acid (“HFCA”), methyl-9-hydroxyfluorene-carboxylate (“HFCA methyl ester”) and methyl-2-chloro-9-hydroxyfluorenecarboxylate, (“Chlorflurenol”) starting from preferred embodiment are disclosed. Several reaction products of phenanthrene are useful in industry, and are valuable plant growth regulators.