Reddy, B. V. Subba; Babu, R. Anji; Ramana Reddy, M.; Reddy, B. Jagan Mohan; Sridhar, B. published the artcile< Intramolecular C-O/C-S bond insertion of α-diazoesters for the synthesis of 2-aryl-4H-benzo[d][1,3]oxazine and 2-aryl-4H-benzo[d][1,3]thiazine derivatives>, Electric Literature of 30095-98-8, the main research area is arylbenzoxazine carboxylate preparation; arylbenzothiazine carboxylate preparation; arylamidophenyl diazoacetate copper triflate catalyst intramol cyclization; arylthioamidophenyl diazoacetate copper triflate catalyst intramol cyclization.
An intramol. C-O insertion of 2-(2-arylamidophenyl)-2-diazoacetate was achieved using a catalytic amount of copper triflate under mild conditions to produce 2-aryl-4H-benzo[d][1,3]oxazine-4-carboxylate in good yields. In addition, 2-diazo-2-(2-arylthioamidophenyl)acetate afforded the corresponding 2-aryl-4H-benzo[d][1,3]thiazine derivatives under similar conditions. This was the first example of the synthesis of benzoxazines and benzothiazines from ortho-amidophenyl diazoacetate and ortho-thioamidophenyl diazoacetate, resp.
RSC Advances published new progress about Aromatic amides Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 30095-98-8 belongs to class esters-buliding-blocks, and the molecular formula is C9H9NO4, Electric Literature of 30095-98-8.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics