Pacut, Ryszard published the artcileReduction of polyaromatic carboxylic acids with lithium in ethylenediamine and tetrahydrofuran, Quality Control of 20029-52-1, the publication is Polish Journal of Chemistry (1985), 59(4), 447-51, database is CAplus.
The use of large amounts of Li in the title reduction led to ring reduction without affecting the CO2H group. Thus, treatment of 5 mmole 1-naphthoic acid with 50 mmole Li in H2NCH2CH2NH2-THF gave reduced naphthoic acid I. Reduction of 2-naphthoic acid with Li (1:5 molar ratio) gave hydronaphthoic acid II, whereas using (1:15 molar ratio) gave III (R = CO2H, CHO). Five mmole 4-PhC6H4CO2H reduced with 50 mmole Li gave benzoic acid IV.
Polish Journal of Chemistry published new progress about 20029-52-1. 20029-52-1 belongs to quinuclidine, auxiliary class Carboxylic acid,Benzene, name is 4-Cyclohexylbenzoic acid, and the molecular formula is C13H16O2, Quality Control of 20029-52-1.
Referemce:
https://en.wikipedia.org/wiki/Quinuclidine,
Quinuclidine | C7H13N | ChemSpider