Mass-spectroscopic study of compounds from the cyclopropane series 4. Behavior of the ethers under chemical ionization

1. A study has been made of the behavior of certain ethers under chemical ionization. 2. Breakdown of the quasimolecular ions of the ethers studied here gave rise to fragments characteristic of the ether and alkyl (aryl) groups and the cyclopropane ring. 3. The compounds in question could be separated into cis and trans isomers on the basis of a study of their CI mass spectra.