The title aldehyde 1 gives the bischromones 2, 3 and disalicyloylbenzene 5 with sodium naphthalenide; a mixture of 3 and chromanone 22 with zinc in methanol; 3, carbinol 6 and diol 8 with zinc in acetic acid; and acetates 7 and 9 with Zn-Ac2O-AcONa.
References
1.
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2.
GirardP., NamyJ. L., and KaganH. B., J. Am. Chem. Soc., 1980, 102, 2693.
3.
KlutchkoS., CohenM. P., ShavelJ.Jr., and StrandtmannM. V., J. Heterocycl. Chem., 1974, 11, 183.
4.
PeneC., and Hubert-HabartM., J. Heterocycl. Chem., 1980, 17, 329.
