I found the field of Chemistry very interesting. Saw the article Peroxydisulfate-Mediated Transition-Metal-Free Oxidative C(sp(3))-H Bond Lactonization published in 2019. Computed Properties of C8H6O2, Reprint Addresses Nozawa-Kumada, K; Kondo, Y (corresponding author), Tohoku Univ, Grad Sch Pharmaceut Sci, Aoba Ku, 6-3 Aoba, Sendai, Miyagi 9808578, Japan.. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one
An inexpensive, powerful, and eco-friendly method for transition-metal-free oxidative C(sp(3))-H bond lactonization was developed using sodium peroxydisulfate as the sole oxidant. The cyclization of 2-alkylbenzoic acids containing a primary, secondary or tertiary carbon at the benzylic position proceeded smoothly, affording a variety of lactone derivatives. Furthermore, various functional groups such as halogen, cyano, nitro and hydroxy groups were tolerated under the reaction conditions.
About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Nozawa-Kumada, K; Kurosu, S; Shigeno, M; Kondo, Y or concate me.. Application In Synthesis of Isobenzofuran-1(3H)-one
Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem