A. Banerji et al., 1,3-DIPOLAR CYCLOADDITIONS - PART-II - CYCLOADDITION OF 1-PYRROLINE 1-OXIDE TO 1-CINNAMOYL PIPERIDINE AND 1-(4'-CHLOROCINNAMOYL) PIPERIDINE, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 37(1), 1998, pp. 15-22
Cycloaddition of 1-pyrroline 1-oxide 1 to 1-cinnamoylpiperidine 2 and
1-(4'-chlorocinnamoyl) piperidine 3 gives two regioisomeric cycloadduc
ts in each case. The structure and stereochemistry of the cycloadducts
have been confirmed from spectroscopic and X-ray crystallographic ana
lysis.