Cyclization, 0-aminoethylsulfuric acid 1,2-benzo-3,4-dihydrocarbazole from

N-Cyanoguanidine, 35, 69 Cyanohydrin formation, 33, 7 3-Cyano-6-isobutyl-2(l)-pyridone, 32, 34 3-Cyano-6-methyl-2(1)-pyridone, 32, 32 l-Cyano-3-a-naphthylurea, 36, 11 1-Cyano-3-phenylurea, 36, 8 Cyclic acyloins, 36, 82 Cyclization, (3-aminoethylsulfuric acid to ethylenimine, 30, 38 1,2-benzo-3,4-dihydrocarbazole from phenylhydrazine and a-tetralone,... 

Cyclization, of -aminoethylsulfuric acid to ethylenimine, 38 l,2-benzo-3,4-dihydrocarbazole from phenylhydrazine and a-tetralone, 91... 

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