Rate coefficients were measured for the base-catalysed hydrolysis of a series of ␥-lactones, i.e. 39 substituted 3-(aryl-and alkylmethylene)-(Z)-1(3H)-isobenzofuranones (3-aryl-and alkylmethylenephthalides) in 70% (v/v) aqueous dioxane at 30•0 °C. A Hammett reaction constant for the 3-or 4-substitut
Structure-reactivity relationship for base-promoted hydrolysis and methanolysis of monocyclic .beta.-lactams
✍ Scribed by Rao, S. Nagaraja; More O'Ferrall, R. A.
- Book ID
- 127136359
- Publisher
- American Chemical Society
- Year
- 1990
- Tongue
- English
- Weight
- 866 KB
- Volume
- 112
- Category
- Article
- ISSN
- 0002-7863
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Rate coefficients were measured for the base-catalysed hydrolysis of a series of substituted 3-(phenoxyor thiophenoxymethylene)-(Z)-1(3H)-isobenzfuranones (3-phenoxy-or thiophenoxymethylenephthalides) in 70% (v/v) aqueous dioxane at 30.0 °C, in addition to the carbonyl stretching frequencies in chlo
## Abstract Molecular‐orbital calculations have been performed for the conjugate base __cis__‐[Co(NH~3~)~4~(NH~2~)Cl]^+^ and __trans__‐[M(NH~3~)~4~(NH~2~)Cl]^+^ (M = Cr^III^, Co^III^, and Rh^III^), the hexacoordinated intermediates __cis‐__ and __trans__‐[Co(NH~3~)~4~(NH~2~)…Cl]^+^, the square‐pyra