A convenient Synthesis of 6-Substituted-2,2-Dimethyl-2H-1-Benzopyrans
摘要:
Various 2,2-dimethyl-6-functional-2H-1-benzopyrans were prepared via a halogen-metal exchange reaction followed by treatment with electrophiles. These 6-functionalized chromenes are important synthetic intermediates for preparation of benzopyran-based potassium channel openers.
A convenient Synthesis of 6-Substituted-2,2-Dimethyl-2<i>H</i>-1-Benzopyrans
作者:Charles Z. Ding
DOI:10.1080/00397919608004664
日期:1996.11
Various 2,2-dimethyl-6-functional-2H-1-benzopyrans were prepared via a halogen-metal exchange reaction followed by treatment with electrophiles. These 6-functionalized chromenes are important synthetic intermediates for preparation of benzopyran-based potassium channel openers.