Abstract
The mechanisms involved in the photosensitized decomposition of methyl diazoacetate (1) were studied by examining the effect of 1 on the CIDNP phenomena observed during the ultraviolet irradiation of benzaldehyde (2) and benzoin (3) in cyclohexane-benzene solutions. The CIDNP spectra generated by photolysis of 3 were not changed significantly by the addition of 1. In contrast, the spectra observed during irradiation of 2 were suppressed by the addition of 1 and replaced by CIDNP signals of products formed by reaction of 1 with 2 or with cyclohexane. These results exclude a chemical sensitization mechanism and therefore support an alternative mechanism, energy transfer from triplet 2 to 1 leading to triplet carbomethoxycarbene.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 779-783 |
| Number of pages | 5 |
| Journal | Journal of the American Chemical Society |
| Volume | 97 |
| Issue number | 4 |
| DOIs | |
| State | Published - Feb 1 1975 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Catalysis
- Chemistry(all)
- Biochemistry
- Colloid and Surface Chemistry