ABSTRACT
A facile route to the formyl derivatives of benzothiacrown ethers with different combinations of O and S heteroatoms in the macrocycle involving ring closure reactions of substituted benzaldehydes with dithiols was developed. The effects of alkali metal cations and solvent were studied.
ACKNOWLEDGMENT
The study was supported by the INTAS (96-1142), DFG (Grant 436RUS 113/56/0), RFBR-DFG (Grant 98-03-04137) and the Ministry for Science and Technologies of Russia.