Formation of 1,4-pentadiene and vinylcyclopropane in the thermal and photochemical decomposition of 2,3-diazabicyclo[3.2.0]hept-2-ene
โ Scribed by White, David H.; Condit, Paul B.; Bergman, Robert G.
- Book ID
- 121425678
- Publisher
- American Chemical Society
- Year
- 1972
- Tongue
- English
- Weight
- 392 KB
- Volume
- 94
- Category
- Article
- ISSN
- 0002-7863
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๐ SIMILAR VOLUMES
Thermal deasetation of difluoro-and tetrafluoro-2,3-diasabicyclo[3.2.0lhept-2-enes proceed via two parallel mechanistic pathways, one involving formation of a diradical via simple N2 loss, and the other proceeding via a retro-dipolar cycloadd~on process. A key finding was the absence of isolation of
Table 1. Selected physical properties of ( 5 a ) and (56) "C-NMR (in CDCl3, T M S internal) c-1 109.2 C-CN 97.4, 98.9, 102.0 c-4 108.9 c -5 c-1 ' 124.5 c -2 , c-3' 131.1 IR ( K B r ) [cm-'1 C=N 2210 Cyclopropene [5] 1898, 1550 UV(CH3CN) [ n m l (log&) 240 (4.61), 278 (4.23) 'H-NMR (100 MHz, CDClj, T