Synthesis of Lactones¹

New transformation of cycloalkanone acetals by peracids α,ω-dicarboxylic acids synthesis

“…Similar observations have been reported in paper [29] where, under conditions of the Baeyer-Villiger rearrangement, the yield of lactones decreased from 84 % to 6 % by enlargement of the ring size from 6 to 8 carbon atoms. The authors [7,8] failed to synthesize the expected products of the Baeyer-Villiger rearrangements under action of MCPBA on cycloalkanone acetals with the cycle size more than six carbon atoms.…”

The depolymerization of poly‐ϵ‐caprolactone with titanium catalysts

“…cially available (7). The dilactone or dimer, a crystalline solid melting v8.3 T (R-CH,-R) in the ratios 1:1:3 which is in agreement with a lactone structure (Scheme 1).…”

Emerging catalytic processes for the production of adipic acid

“…In 1958, a contribution by Starcher and Phillips had already demonstrated the formation of small amounts of AA (1%) as a side reaction in the Baeyer-Villiger oxidation of cyclohexanone with peracetic acid. 85 However, it was almost half a century later that the direct oxidation of cyclohexanone aroused the interest of researchers looking for new synthesis routes for AA. In the past, various oxidants have been used for the oxidation of cyclic ketones, including HNO 3 , KMnO 4 , CrO 3 , KO 2 , O 2 , and H 2 O 2 .…”