Chromium(III) catalyzed synthesis of allenes from propargyl derivatives via a carbometalation–elimination sequence
摘要:
The syn-carbometalation/syn-elimination of propargyl substrates to form allenes has been achieved using cationic chromium(III) catalysts activated by alkylaluminums. The mechanism and scope of this transformation are presented. (c) 2005 Elsevier Ltd. All rights reserved.
Chromium(III) catalyzed synthesis of allenes from propargyl derivatives via a carbometalation–elimination sequence
摘要:
The syn-carbometalation/syn-elimination of propargyl substrates to form allenes has been achieved using cationic chromium(III) catalysts activated by alkylaluminums. The mechanism and scope of this transformation are presented. (c) 2005 Elsevier Ltd. All rights reserved.