DIY History | Transcribe | Scholarship at Iowa | Phenylbromethylbenzenesulfonamid and phenylbromethylamin by Carl Leopold von Ende, 1893 | Phenylbromethylbenzenesulfonamide and Phenylbromethylamin by Carl Leopold von Ende, 1893, Page 19

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Phenylbromethylbenzenesulfonamid and phenylbromethylamin by Carl Leopold von Ende, 1893

Phenylbromethylbenzenesulfonamide and Phenylbromethylamin by Carl Leopold von Ende, 1893, Page 19

[page]18.[/page]

     Average of four (4) analyses.

          Found     |     Calculated
          ----------------------------------
H --       5.11      |         4.72
C --    62.20     |       61.84

[underlined]Phenylbromethylbenzenesulfonamid.[/underlined]

C[subscript]6[/subscript]H[subscript]5[/subscript] * SO[subscript]2[/subscript] * N[branch1]C[subscript]6[/subscript]H[subscript]5[/subscript][/branch1][branch2]C[subscript]2[/subscript]H[subscript]4[/subscript]Br[/branch2]

     Take the benzyenesulfanilid and treat with NaOH and BrC[subscript]2[/subscript]H[subscript]4[/subscript]Br , the latter in about 10% excess and heat over argand burner, shaking well if bumping is too strong. It seems to be best to add the required amount of NaOH in separate portions, about one half first and after boiling awhile, the other half. The heating is continued until the alkaline reaction has about disappeared. The operation is best carried on in a round bottom flask with reflex condenser. Next the excess of BrC[subscript]2[/subscript]H[subscript]4[/subscript]Br is removed by passing steam through the mass, until there can be no odor of the bromid detected. The syrupy mass is then

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[page]18.[/page] Average of four (4) analyses. Found | Calculated ---------------------------------- H -- 5.11 | 4.72 C -- 62.20 | 61.84 [underlined]Phenylbromethylbenzenesulfonamid.[/underlined] C[subscript]6[/subscript]H[subscript]5[/subscript] * SO[subscript]2[/subscript] * N[branch1]C[subscript]6[/subscript]H[subscript]5[/subscript][/branch1][branch2]C[subscript]2[/subscript]H[subscript]4[/subscript]Br[/branch2] Take the benzyenesulfanilid and treat with NaOH and BrC[subscript]2[/subscript]H[subscript]4[/subscript]Br , the latter in about 10% excess and heat over argand burner, shaking well if bumping is too strong. It seems to be best to add the required amount of NaOH in separate portions, about one half first and after boiling awhile, the other half. The heating is continued until the alkaline reaction has about disappeared. The operation is best carried on in a round bottom flask with reflex condenser. Next the excess of BrC[subscript]2[/subscript]H[subscript]4[/subscript]Br is removed by passing steam through the mass, until there can be no odor of the bromid detected. The syrupy mass is then