Printed 1c Gre-.t Britain 01991 PereJan.02 Press Lt+. THE REACTION OF DIAZOACETIC ESTER WITH THIOBENZOPHENONE
The reaction of triethylindium with thiobenzophenone
โ Scribed by Hisashi Tada; Kiyoshi Yasuda; Rokuro Okawara
- Publisher
- Elsevier Science
- Year
- 1967
- Weight
- 93 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0020-1650
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๐ SIMILAR VOLUMES
2,5-Dihydro-2,2-diphenyl-1,3,4-thiadiazole (4) eliminates N 2 at -45 ยฐC and generates thiobenzophenone S-methylide (5), which is intercepted by dipolarophiles. The 1,3-cycloadditions of 5 with thiones (aromatic and aliphatic thioketones, dithioesters, trithiocarbonate) furnish 1,3-dithiolanes 7, in
prepared from thiobenzophenone and diazomethane at -78'C, extrudes N2 at -45'C and allows to study in situ 1,3-cycloadditions of thiobenzophenone S-methylide (3\_) with electrophilic C=S, C=C, C%, and N=N bonds. We reported recently that thiobenzophenone combines with one equiv. of diazomethane at -