Journal of organometallic chemistry

Platinum complex catalyzed synthesis of urea derivatives from nitroarenes and amines under carbon monoxide

Y Tsuji, R Takeuchi, Y Watanabe

Index: Tsuji, Yasushi; Takeuchi, Ryo; Watanabe, Yoshihisa Journal of Organometallic Chemistry, 1985 , vol. 290, p. 249 - 256

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Citation Number: 4

Abstract

Abstract N, N-Diarylureas were obtained in good yields from nitroarenes and aminoarenes at 140 C under carbon monoxide (initial 60 kg cm− 2) in the presence of a catalytic amount of dichlorobis (triphenylphosphine) platinum (II), the yields of N, N′-diphenylurea, N, N′- bis (4-methylphenyl) urea, and N, N′-bis (4-chlorophenyl) urea were 65, 67 and 61%, respectively. Benzimidazole derivatives were obtained by the intramolecular cyclization ...

~63%

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~38%

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~20%

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~19%

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~45%

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~62%

~20%

~65%

~0%

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~36%

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~60%

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~59%

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~0%

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~47%

~24%

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~20%

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~8%

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~20%

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