Uma rota alternativa para a sintese de PPh2Si(CH3)3 segundo Appel; preparacao e purificacao de PPh2H (Ph = FENILA)



Título del documento: Uma rota alternativa para a sintese de PPh2Si(CH3)3 segundo Appel; preparacao e purificacao de PPh2H (Ph = FENILA)
Revue: Quimica nova
Base de datos: PERIÓDICA
Número de sistema: 000196069
ISSN: 0100-4042
Autores: 1
Instituciones: 1Universidade Federal de Santa Maria, Departamento de Quimica, Santa Maria, Rio Grande do Sul. Brasil
Año:
Periodo: Ene-Feb
Volumen: 24
Número: 1
Paginación: 133-134
País: Brasil
Idioma: Portugués
Tipo de documento: Nota breve o noticia
Enfoque: Experimental, divulgación
Resumen en inglés The unexpected low yield in the Appel's synthesis of PPh2Si(CH3)3 can be attributed to the presence of phenyllithium and its interfering reactions. The method was carried out with hydrolysis of the products formed by the reaction of PPh3 with metallic lithium, phenyllithium and lithiumdiphenylphosphide. PPh2Si(CH3)3 was obtained by subsequent reaction of the resulting diphenylphosphin with elemental lithium and ClSi(CH3)3
Disciplinas: Química
Palabras clave: Química orgánica,
Síntesis de Appel,
Organosililfosfinas,
Bajo rendimiento,
Rendimiento,
Reacción,
Difenilfosfina,
Litio
Keyword: Chemistry,
Organic chemistry,
Appel's synthesis,
Organosilylphosphines,
Low yield,
Yield,
Reaction,
Diphenylphosphin,
Litium
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