## Abstract 5,12:6,11βDi[1,2]benzenodibenzo[a,e]cyclooctene (tetradeβhydrodianthracene, TDDA) (1) reacts with halogens to give transannular (__anti__) 4, 5 and ringβopened (__syn__) products 6, 7. The product ratio shows a remarkable solvent dependence. Solvents of medium polarity favor __anti__ ad
β¦ LIBER β¦
Electrophilic additions to (dimethylamino)allene
β Scribed by W. Klop; P. A. A. Klusener; L. Brandsma
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 281 KB
- Volume
- 103
- Category
- Article
- ISSN
- 0165-0513
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The kinetics and the products of the bromination of several cyclic allenes, from C 9 to C 13 (1 a Β± e), with tetrabutylammonium tribromide (TBAT) and Br 2 have been investigated in 1,2-dichloroethane (DCE) and methanol. The first product of the interaction between the allene and Br 2 is a 1:1 p comp