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Mechanistic insights into n-BuLi mediated phospha-Brook rearrangement

New Journal of Chemistry, ISSN: 1369-9261, Vol: 43, Issue: 25, Page: 9886-9890
2019
  • 10
    Citations
  • 0
    Usage
  • 3
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    10
    • Citation Indexes
      10
  • Captures
    3

Article Description

A plausible mechanism for n-BuLi mediated phospha-Brook rearrangement is proposed and substantiated with the help of P-NMR and Density Functional Theory (DFT) studies. Based on the P-NMR studies, the reaction is proposed to proceed through in situ formation of three lithiated intermediates, which were further supported by the geometry optimized transition states as obtained from DFT studies. Interestingly, DFT calculations revealed the crucial role of the Li-atom in stabilizing cyclic transition states, which in turn resulted in a highly efficient and catalytic phospha-Brook rearrangement even with non-reactive ketones. The calculated rate coefficients using transition state theory also matched well with the experimentally observed facts.

Bibliographic Details

Santosh Ranga; Manab Chakravarty; Tanmay Chatterjee; Subhas Ghosal

Royal Society of Chemistry (RSC)

Chemical Engineering; Chemistry; Materials Science

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