A Facile Synthesis of Methyl 5-Amino-6-chloro-2H-1-benzopyran-8-carboxylate Derivatives
摘要:
Methyl 6-chloro-5-pivaloy lamino-2H-1-benzopyran-8-carboxylate (4d) was prepared in good yield as a result of' the thermal cylcization of methyl 5-chloro-4-pivaloy lamino-2-propargyloxy benzoate (3d) using N.N-diethylaniline as a solvent.
A Facile Synthesis of Methyl 5-Amino-6-chloro-2H-1-benzopyran-8-carboxylate Derivatives
摘要:
Methyl 6-chloro-5-pivaloy lamino-2H-1-benzopyran-8-carboxylate (4d) was prepared in good yield as a result of' the thermal cylcization of methyl 5-chloro-4-pivaloy lamino-2-propargyloxy benzoate (3d) using N.N-diethylaniline as a solvent.