Primary aliphatic amines react with carbon disulfide in the presence of BOP (benzotriazole-1-yl-oxy-tris(dimethylamino)phosphonium hexafluorophosphate 1, giving the corresponding isothiocyanates in good to high yields and high purity; a number of isothiocyanates are synthesized and isolated or generated in situ and treated with a nucleophile.
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Boas et al. (1995) studied this question.
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