Regioselective 7-Bromination and Rearrangement of 4,8,8-Trimethyl-7,8,9,10-tetrahydrobenzo[h]chromen-2-one
Regioselective 7-Bromination and Rearrangement of 4,8,8-Trimethyl-7,8,9,10-tetrahydrobenzo[h]chromen-2-one
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4,8,8-三甲基-7,8,9,10-四氢苯并[h]色满-2-酮的区域选择性7-溴化和重排
DOI:
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发表时间:
2010
期刊:
影响因子:
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通讯作者:
WANG Yang
中科院分区:
文献类型:
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作者:
ZHANG Jing-lei;WANG Yang
Regioselective 7-bromination and rearrangement of 4,8,8-trimethyl-7,8,9,10-tetrahydrobenzo[h]chromen-2-one(4) proceeded smoothly with the treatment of N-bromosuccinimide and resulted in the formation of 7-bromo-4,8,8-trimethyl-7,8,9,10-tetrahydrobenzo[h]chromen-2-one(9)and 4,7,8-trimethyl-2H-benzo[h]chromen-2-one(11)in 37% and 34% yields,respectively.The possible mechanism of rearrangement was proposed.