Substituent effects in the diastereoselective [4+2] cycloaddition of chiral naphthalene derivatives with singlet oxygen
作者:Waldemar Adam、Michael Prein
DOI:10.1016/s0040-4039(00)73346-6
日期:1994.6
From 1-bromo-4-methylnaphthalene eight chiral derivatives 1 with a variety of functional groups at the stereogenic center were prepared, which with singletoxygen led to the corresponding endoperoxides 2 in substituent-dependent π-facial selectivity of stereoelectronic origin.