cyclohexanol in 1,2-dichloro-ethane byproducts: BF3-pyridine complex, H2O; under Ar addn. of BF3*Et2O to mixt. of alcohol and complex in (CH2)2Cl2, further addn. of BF3*Et2O, heating in 60°C oil bath for 20 min,addn. 1 drop of pyridine in hexane, removing BF3-pyridine complex pptd.; solvent removing in vac., addn. of petroleum ether to resulting oil, filtration, drying under Ar;

cycloheptanol in 1,2-dichloro-ethane byproducts: BF3-pyridine complex, H2O; under Ar addn. of BF3*Et2O to mixt. of alcohol and complex in (CH2)2Cl2, further addn. of BF3*Et2O, heating in 60°C oil bath for 45 min,addn. 1 drop of pyridine in hexane, removing BF3-pyridine complex pptd.; solvent removing in vac., addn. of petroleum ether to resulting oil, filtration, drying under Ar;

cycloheptanol in 1,2-dichloro-ethane byproducts: H2O; under Ar addn. of LiPF6 to mixt. of alcohol and complex in (CH2)2Cl2, heating in 60°C oil bath for 30 min; solvent removing in vac., addn. of petroleum ether to resulting oil, filtration, drying under Ar;

1-hydroxycyclopentane in 1,2-dichloro-ethane byproducts: BF3-pyridine complex, H2O; under Ar addn. of BF3*Et2O to mixt. of alcohol and complex in (CH2)2Cl2, further addn. of BF3*Et2O, heating in 60°C oil bath for 60 min,addn. 1 drop of pyridine in hexane, removing BF3-pyridine complex pptd.; solvent removing in vac., addn. of petroleum ether to resulting oil, filtration, drying under Ar;