共 50 条
Rhodium-Catalyzed [3+2+2] and [2+2+2] Cycloadditions of Two Alkynes with Cyclopropylideneacetamides
被引:51
作者:
Yoshida, Tomoka
[1
]
Tajima, Yuki
[1
]
Kobayashi, Masayuki
[1
]
Masutomi, Koji
[2
]
Noguchi, Keiichi
[3
]
Tanaka, Ken
[1
,2
,4
]
机构:
[1] Tokyo Univ Agr & Technol, Dept Appl Chem, Grad Sch Engn, Koganei, Tokyo 1848588, Japan
[2] Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Appl Chem, Meguro Ku, Tokyo 1528550, Japan
[3] Tokyo Univ Agr & Technol, Instrumentat Anal Ctr, Koganei, Tokyo 1848588, Japan
[4] Japan Sci & Technol Agcy JST, ACT C, Kawaguchi, Saitama 3320012, Japan
基金:
日本科学技术振兴机构;
关键词:
asymmetric catalysis;
cycloaddition;
heterocycles;
rhodium;
synthetic methods;
REGIOSELECTIVE INTERMOLECULAR CYCLOTRIMERIZATION;
ETHYL CYCLOPROPYLIDENEACETATE;
(3+2)+2 CARBOCYCLIZATION;
COCYCLIZATION;
REACTIVITY;
ALKENYLIDENECYCLOPROPANES;
ALKYLIDENECYCLOPROPANES;
CONSTRUCTION;
COMPLEXES;
REGIO;
D O I:
10.1002/anie.201502505
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
It has been established that a cationic rhodium(I)/H-8-binap complex catalyzes the [3+2+2] cycloaddition of 1,6-diynes with cyclopropylideneacetamides to produce cycloheptadiene derivatives through cleavage of cyclopropane rings. In contrast, a cationic rhodium(I)/(S)-binap complex catalyzes the enantioselective [2+2+2] cycloaddition of terminal alkynes, acetylenedicarboxylates, and cyclopropylideneacetamides to produce spiro-cyclohexadiene derivatives which retain the cyclopropane rings.
引用
收藏
页码:8241 / 8244
页数:4
相关论文
共 50 条