Unusual Formation of a Cyclyne Dimer and an Indenoindene Derivative
โ Scribed by Chakraborty, Manisha; Tessier, Claire A.; Youngs, Wiley J.
- Book ID
- 126051813
- Publisher
- American Chemical Society
- Year
- 1999
- Tongue
- English
- Weight
- 99 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0022-3263
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Table 3. C')cloaddirion of allylsilane 2b and methyl propynoate (13) Reaction conditions 14. Yield [%I 15, Yield [%I 3 equiv 2b. -7X C --20 C. 19 h 4equi\2h. -78 t -2 5 C . 5 d 45 46 [a] 98 -3 e q u i v Z h . X C -4 0 C . 1 9 h 34 64 [a] [a] ( i i i r r . \ i +IS: \ w , . \ j ~i i -l S = 3: 1. Trace
Reaction of an anti head-to-tail 4-chlorocoumarin dimer with amines afforded benzopyranocoumarin derivatives in high yields; the reaction is quite different from the expected reaction of coumarin dimer derivatives with amines. On the basis of spectral information, a possible reaction mechanism is pr