Stereochemistry, Tautomerism, and Reactions of Acridinyl Thiosemicarbazides in the Synthesis of 1,3-Thiazolidines.
✍ Scribed by Eva Balentova; Jan Imrich; Juraj Bernat; Lucia Sucha; Maria Vilkova; Nad'a Pronayova; Pavol Kristian; Kalevi Pihlaja; Karel D. Klika
- Publisher
- John Wiley and Sons
- Year
- 2006
- Weight
- 24 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0931-7597
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## Abstract magnified image The regioselectivities of methyl‐ and phenylhydrazine with acridin‐9‐yl isothiocyanate (thus yielding thiosemicarbazides with acridine substituted on the urea‐type side) were examined. Methylhydrazine regioselectivity was high with the α‐nitrogen atom overwhelmingly mor
## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract magnified imageThe 1__H__‐pyrazole‐3‐carboxylic acids **2** were converted via reactions of their acid chlorides **3** with some semi‐ and thiosemicarbazide derivatives into the corresponding new phenylsemi‐ and thiosemicarbazides **4a**, **4b**, **4c**, **4d**, **4e**, **6**, 5‐(pyrazo