Cu(<scp>i</scp>)-Catalyzed addition–cycloisomerization difunctionalization reaction of 1,3-enyne-alkylidenecyclopropanes (ACPs)
作者:Peng-Hua Li、Yin Wei、Min Shi
DOI:10.1039/d0ob01692f
日期:——
A copper(I)-catalyzed three-component addition–cycloisomerization difunctionalization reaction of 1,3-enyne-ACPs with Togni I reagent and TMSCN under mild reaction conditions has been developed, affording 3-trifluoroethylcyclopenta[b]naphthalene-4-carbonitrile derivatives. The reaction proceeded through a copper(I)-catalyzed 1,4-addition of conjugated 1,3-enynes via a radical relay process and aromatic
开发了铜(I)在温和的反应条件下,用Togni I试剂和TMSCN在1,3-烯炔-ACPs上催化铜的三组分加成-环异构化双官能化反应,得到3-三氟乙基环戊[ b ]萘-4-甲腈衍生物。通过铜进行反应(我)催化的1,4-加成共轭1,3-烯炔的通过自由基中继处理和丙二烯-ACP中间体的芳族环异构。
Synthesis of Diiodinated All-Carbon 3,3′-Diphenyl-1,1′-spirobiindene Derivatives via Cascade Enyne Cyclization and Electrophilic Aromatic Substitution
作者:Quanzhe Li、Liuzhu Yu、Yin Wei、Min Shi
DOI:10.1021/acs.joc.9b01418
日期:2019.7.19
from the reaction of propargyl alcohol-tethered alkylidenecyclopropanes with iodine. The reaction proceeded through an iodination-initiated cascade intramolecular enyne cyclization and electrophilic aromatic substitution reaction process in 1,2-dichloroethane upon heating, giving desired spirocyclic products in moderate to excellent yields. Further transformation of the obtained products has also been
Compounds of the formula ##STR1## wherein X and Y are selected from the group consisting of hydrogen, halogen and trifluoromethyl, are disclosed. The compounds are useful as intermediates in the production of 2-benzazepines, compounds of pharmacological activity. Also disclosed are other intermediates and processes for their production.