A Study of the Relation of the Structure of 1 Mercaptobenzothiazole And Its Deri
A Study of the Relation of the Structure of 1 Mercaptobenzothiazole And Its Deri
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Calc. For C 9 H 9 NOS 2 : 8, 30. 33. Found: 30. 31, 29. 99. Attempts to prepare the disulfide were unsuccessful. L-Mercapto-5-methoxy-benzothiazole was prepared by each of the four methods but the product in all cases proved very difficult to purify. It was found that by rapidly heating the reaction mixture and rapidly cooling the autoclave a more easily purified product was obtained. Recrystallized from 70% alcohol and twice from benzene it forms light yellow needles melting at 201 . Analysis.... Subs. , 0. 1505: BaSO 4, 0. 3546. Calc. For C 8 H 7 NOS 2 : 8, 32. 48. Found: 32. 37. Attempts to prepare substituted mercapto-benzothiazoles from 0-anisidine, the o- and p-chloro- and bromo-anilines and ^-aminophenol were unsuccessful. Benzidine and carbon disulfide yielded an alkali-soluble product melting above 250, which was not further investigated. Summary and Conclusions 1. The chemistry of the zinc and ammonium salts of phenyl-dithio- carbamic acid has been extended and the work of Losanitch verified.
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To quickly assess the difficulty of the text, read a short excerpt:
Calc. For C 9 H 9 NOS 2 : 8, 30. 33. Found: 30. 31, 29. 99. Attempts to prepare the disulfide were unsuccessful. L-Mercapto-5-methoxy-benzothiazole was prepared by each of the four methods but the product in all cases proved very difficult to purify. It was found that by rapidly heating the reaction mixture and rapidly cooling the autoclave a more easily purified product was obtained. Recrystallized from 70% alcohol and twice from benzene it forms light yellow needles melting at 201 . Analysis.... Subs. , 0. 1505: BaSO 4, 0. 3546. Calc. For C 8 H 7 NOS 2 : 8, 32. 48. Found: 32. 37. Attempts to prepare substituted mercapto-benzothiazoles from 0-anisidine, the o- and p-chloro- and bromo-anilines and ^-aminophenol were unsuccessful. Benzidine and carbon disulfide yielded an alkali-soluble product melting above 250, which was not further investigated. Summary and Conclusions 1. The chemistry of the zinc and ammonium salts of phenyl-dithio- carbamic acid has been extended and the work of Losanitch verified.
What to read after A Study of the Relation of the Structure of 1 Mercaptobenzothiazole And Its Deri?
You can find similar books in the "Read Also" column, or choose other free books by Lorin Beryl Sebrell to read onlineMoreLess
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