Application In Synthesis of 4,4′-Dibromobiphenyl. Uchida, K; Togo, H in [Uchida, Ko; Togo, Hideo] Chiba Univ, Grad Sch Sci, Inage Ku, Yayoi Cho 1-33, Chiba 2638522, Japan published Transformation of aromatic bromides into aromatic nitriles with n-BuLi, pivalonitrile, and iodine under metal cyanide-free conditions in 2019, Cited 69. The Name is 4,4′-Dibromobiphenyl. Through research, I have a further understanding and discovery of 92-86-4.
Various aromatic nitriles could be obtained in good yields by the treatment of aryl bromides with n-butyllithium and then pivalonitrile, followed by the treatment with molecular iodine at 70 degrees C, without metal cyanides under transition-metal-free conditions. The present reaction proceeds through the radical beta-elimination of imino-nitrogen-centered radicals formed from the reactions of imines and N-iodoimines under warming conditions. (c) 2019 Elsevier Science. All rights reserved. (C) 2019 Elsevier Ltd. All rights reserved.
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Reference:
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