Neumeyer, Markus published the artcileControlling the Substitution Pattern of Hexasubstituted Naphthalenes by Aryne/Siloxyfuran Diels-Alder Additions: Regio- and Stereocontrolled Synthesis of Arizonin C1 Analogs, HPLC of Formula: 17877-23-5, the publication is European Journal of Organic Chemistry (2017), 2017(20), 2883-2915, database is CAplus.
3,4-Dimethoxybenz-1-yne and 2-siloxylated furans without or with a bromine atom at C-3 undergo Diels-Alder reactions with orientational selectivity. Hydrolysis furnished a bromine-free or a bromine-containing naphthalene, resp. Bromination of the former provided a regioisomer of the latter. Either of the two compounds was processed to give a variety of unnatural naphthoquinonopyrano-γ-lactones. This occurred by a succession of (1) Heck coupling, (2) asym. dihydroxylation, (3) oxa-Pictet-Spengler cyclization, and (4) oxidation The fifteen monomeric naphthoquinonopyrano-γ-lactone structures that we prepared resemble the natural product (-)-arizonin C1 (I) or its C-5 epimer. Accordingly, they represent hexasubstituted naphthalenes likewise. The sixteenth naphthoquinonopyrano-γ-lactone that we synthesized is a kind of dimer. Its moieties are bridged differently than those in naturally occurring naphthoquinonopyrano-γ-lactone dimers.
European Journal of Organic Chemistry published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, HPLC of Formula: 17877-23-5.
Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts