ISSN:
1573-9171
Keywords:
phosphite ozonides
;
31P NMR spectra
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Two conformers (chair, boat) of [l-(−)-menthyl)]-[2,2′-methylene-bis-(4-methyl-6-tert-butylphenyl)] phosphite ozonide have been obtained by the low temperature ozonization (−80 °C) of [l-(−)-menthyl)]-[2,2′-methylene-bis-(4-methyl-6-tert-butylphenyl)] phosphite. It was determined that decomposition of the ozonide is first order with the rate constant logk 0 = (10.92±1.10)−(14.02±1.25)/gq (θ = 2.303RT, kcal mol−1), leading to [l-(−)-menthyl)]-[2,2′-methylene-bis-(4-methyl-6-tert-butylphenyl)] phosphate and oxygen (including singlet oxygen). Conformational transitions (chair-boat) for [l-(−)-menthyl)]-[2,2′-methylene-bis-(4-methyl-6-tert-butylphenyl)] phosphate have been registered by31P NMR spectroscopy.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00703481