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2-(5-Bromothiophen-2-yl)piperazine

2-(4-Chlorophenyl)piperazine

2-(3-Chlorophenyl)piperazine

Triphenylphosphine dibromide

Tris(hydroxymethyl)phosphine

2-(4-Chlorophenyl)piperazine-1-carboxylic acid tert-butyl ester

1-Methyl-4-(4-nitrophenyl)piperazine

2-(4-Methylphenyl)piperazine

4-(4-Nitrophenyl)piperazine-1-carboxylic acid tert-butyl ester

2-Thiophen-2-yl-piperazine

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