A study on the regio- and stereo-chemistry of organocuprate additions to 1,2,3-butatrienes
✍ Scribed by H. Kleijn; H. Westmijze; A. Schaap; H.J.T. Bos; P. Vermeer
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 435 KB
- Volume
- 98
- Category
- Article
- ISSN
- 0165-0513
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📜 SIMILAR VOLUMES
Alkynyltin reagents add to the P-position of 3-acylpyridines activated by methyl chloroformate regio-and chemoselectively to give 2,3\_disubstituted 1,2dihydropyridines, whereas alkynyl Grignard reagents suffer from a lack of regioor chemoselectivity.
## Abstract Reaction of __rel__‐(4__R__,5__R__)‐4‐benzoylamino‐5‐phenyl‐3‐pyrazolidinone (4) with aromatic aldehydes 5a‐f gave the corresponding (1__Z__)‐__rel__‐(4__R__,5__R__)‐1‐arylmethylene‐4‐benzoylamino‐5‐phenyl‐3‐pyrazolidinon‐1‐azomethinimines 6a‐f. 1,3‐Dipolar cycloadditions of azomethinim