METHOD OF CONDENSING N-PHENYL CARBAMATES

4,4 min -Diphenylmethane dicarbamates are produced with high selectivity and in high yield by the one-stage condensation of a N-phenyl carbamate with a methylenating agent in presence of zinc halide as catalyst.

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Bibliographische Detailangaben
Hauptverfasser: FUJIHISA MATSUNAGA, MITSUKI YASUHARA
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:4,4 min -Diphenylmethane dicarbamates are produced with high selectivity and in high yield by the one-stage condensation of a N-phenyl carbamate with a methylenating agent in presence of zinc halide as catalyst.