Various s t e r i c i n t e r a c t i o n s have been observed i n fragmentation processes o f gas-phase ions.' These i n t e r a c t i o n s are revealed by d i f f e r e n t decomposition pathways observed f o r stereoi somers, and they may provide mechanistic and struct u r a l information i n ga
Propellanes. XLVII. The reaction of 11,13-dioxo-12-methyl-12-aza[4.4.3] propella-2,4,7,9-tetraene and -2,4-diene with singlet oxygen
✍ Scribed by Iman Landheer; David Ginsburg
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 113 KB
- Volume
- 98
- Category
- Article
- ISSN
- 0165-0513
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Singlet oxygen attacks 3 from the direction syn to the hetero‐ring.
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## Abstract Acid treatment of 9__exo__‐methyl‐__anti__^10,11^‐tricyclo[4.2.1.1^2,5^]deca‐3,7‐diene‐9__endo__, 10__endo__‐diol (**8**) leads to the two isomeric pentacyclic ethers **7** and **9** by intramolecular nucleophilic substitution of a protonated OH‐group with participation of a C,C‐double