Reactions of azides with isocyanates. Cycloadditions and cycloreversions
β Scribed by Vandensavel, J. M.; Smets, G.; L'Abbe, G.
- Book ID
- 120465348
- Publisher
- American Chemical Society
- Year
- 1973
- Tongue
- English
- Weight
- 509 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0022-3263
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π SIMILAR VOLUMES
Most Current State-of-the-art Overview Of This Important Class Of Compounds, Encompassing Many New And Emerging Applicationsthe Number Of Articles On Organic Azides Continues To Increase Tremendously; On Average, There Are More Than 1000 New Publications A Yearcovers Basic Chemistry As Well As State
The reactions of (CF3)2BNMe2 (Al) and (CF3)2BNEt2 (A2) with isocyanates and isothiocyanates have been studied. Near room temperature the C=N bonds of R-N=C=O and R-N=C=S undergo i2+2] cycloaddition with the B-N bond of Al to yield the four-membered rings 8. I, V, VI, VIII and IX rearrange at -6O'C t