摘要
“Amano” lipase AS(lipase from Aspergillus niger ), which naturally hydrolyzes triglycerides, was found promiscuously to catalyze multi-component reactions of aromatic aldehydes with malononitrile and β -naphthol to prepare naphthopyran derivatives in anhydrous organic solvents in moderate to good yields.
危险品化学品经营许可证（带存储）