Abstract

The variable-temperature n.m.r. spectra of a number of five-co-ordinate spirophosphoranes having P-ethoxy- and P-ethylthio-groups have given data on the energetics of the pseudorotation processes available to the systems. It is concluded that the apicophilicities of ethoxy- and ethylthio-groups are similar. The spirophosphoranes were obtained from 2-substituted 1,3,2-dioxaphospholans by addition to biacetyl, 3-benzylidenepentane-2,4-dione, or 2-phenylacrylophenone, or by condensation with 1,2-diols in the presence of N-chlorodi-isopropylamine.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.