Diazo-2-oxoalkyl)silanes 1 react with 2-acyl-1,2,3(λ 3 )-[3+2] cycloreversion into 2 and 4, and extrusion of molecular nitrogen. The latter process is likely to generate 3-diazaphospholes 4 to form [3+2] cycloaddition products 5, which indicate that 1-diazo-2-silyloxy-1-alkenes 2, alkenylidene-1,2,3
From 2-Phosphino-2H-Phosphirene to 1-Phosphino-1H-Phosphirene, 1λ5,2λ3-Diphosphete, and 1,2-Dihydro-1λ3,2λ3-Diphosphete: an Experimental and Theoretical Study
✍ Scribed by Muriel Sanchez; Régis Réau; Colin J. Marsden; Manfred Regitz; Guy Bertrand
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 142 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0947-6539
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1,6ak 4 -Dithia-6-azapentalenes (7a)-( 7h), (12a), and (12b) have been synthesized by the reaction of 5-aryl-3-benzylidene-3H-1,2-dithioles with isonitriles in the presence of phosphoryl chloride and by the reaction of 3-benzyl-and 3-methyl-1k 4 , 2-dithiol-1-ylium salts with isonitriles. Possible m
XI SO. ( 2 0 m L ) was condensed at -190°C into a pressure flask containing l.Og (6.8 mmol) of 1 and I.0g (3.4mmol) of 3. The colorless solution was allowed to warm up in the dark to room temperature and stirred for 18 h. The moderately soluble precipitate that formed was filtered off and the soI\r