Tamura, Yasumitsu; Tsunekawa, Masayoshi; Miyamoto, Tomohisa; Ikeda, Masazumi published the artcile< Syntheses and some properties of 4-acyl-1-methyl-2-azathiabenzene 1-oxides>, COA of Formula: C19H34O2, the main research area is azathiabenzene oxide; thiabenzene aza oxide; thiazine oxide; acylvinylsulfoximine cyclization; sulfoximine acylvinyl cyclization.
4-Acyl-1-methyl-2-azathiabenzene 1-oxides I [R = H, R1 = Me, OEt, R2 = Me; RR1 = (CH2)3, R2 = Me; R = R1 = Me, R2 = H] were prepared by base catalyzed cyclization of N-(2,2-diacylvinyl)dimethylsulfoximines which, in turn, were obtained by the reactions of (MeCO)2C:CHOEt, EtOCH:C(CO2Et)2, MeCOC(:CHOEt)CO2Et, and 2-acetyl-3-methoxy-2-cyclohexen-1-one with dimethylsulfoximine. Comparison of the phys. and chem. properties of the azathiabenzene 1-oxides with those of the corresponding 4-acyl-1-methylthiabenzene 1-oxides II suggests that both the ylidic and betaine like properties of the 2-azathiabenzene 1-oxides are much lower than those of the latter.
Journal of Organic Chemistry published new progress about Cyclization. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, COA of Formula: C19H34O2.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics