Zhang, Xueguo; Wang, Peigen; Zhu, Liangwei; Chen, Baohua published an article in 2021. The article was titled 《Rhodium(III)-catalyzed chemodivergent annulations between phenyloxazoles and diazos via C-H activation》, and you may find the article in Chinese Chemical Letters.Electric Literature of C7H12O3 The information in the text is summarized as follows:
Acid-controlled, chemodivergent and redox-neutral annulations for the synthesis of isocoumarins I (R = t-Bu, 4-bromophenyl, cyclohexyl, thiophen-2-yl, etc.; R1 = Me, Et, Ph; R2 = Me, Et, t-Bu) and isoquinolinones II (R3 = t-Bu, heptyl, furan-2-yl, etc.) have been realized via Rh(III)-catalyzed C-H activation. Diazo compounds R1C(O)C(=N2)C(O)OR2 act as a carbene precursor, and coupling occurs in one-pot process, where adipic acid and trimethylacetic acid promote chemodivergent cyclizations. In the experimental materials used by the author, we found Ethyl 3-oxopentanoate(cas: 4949-44-4Electric Literature of C7H12O3)
Ethyl 3-oxopentanoate(cas: 4949-44-4) belongs to ketone compounds. They are most widely used as solvents, especially in industries manufacturing explosives, lacquers, paints, and textiles. Ketones are also used in tanning, as preservatives, and in hydraulic fluids.Electric Literature of C7H12O3
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics