Highly enantioselective phase-transfer alkylation of 3-substituted-2-oxindoles with activated bromomethanes is disclosed with a broad substrate scope by using bicyclic guanidinium as a catalyst and a Lewis acid as the co-catalyst. The alkylation adducts are versatile intermediates to accomplish the syntheses of pyrroloindolines and furoindolines.
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Univ Tokyo, Grad Sch Pharmaceut Sci, Bunkyo Ku, Tokyo 1130033, JapanUniv Tokyo, Grad Sch Pharmaceut Sci, Bunkyo Ku, Tokyo 1130033, Japan
Mitsunuma, Harunobu
Shibasaki, Masakatsu
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Tokyo Kamiosaki, Inst Microbial Chem, Shinagawa Ku, Tokyo 1410021, JapanUniv Tokyo, Grad Sch Pharmaceut Sci, Bunkyo Ku, Tokyo 1130033, Japan
Shibasaki, Masakatsu
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Kanai, Motomu
Matsunaga, Shigeki
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h-index: 0
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Univ Tokyo, Grad Sch Pharmaceut Sci, Bunkyo Ku, Tokyo 1130033, Japan
ERATO Japan Sci & Technol Agcy, Kanai Life Sci Catalysis Project, Bunkyo Ku, Tokyo 1130033, JapanUniv Tokyo, Grad Sch Pharmaceut Sci, Bunkyo Ku, Tokyo 1130033, Japan
机构:
Univ Tokyo, Grad Sch Pharmaceut Sci, Bunkyo Ku, Tokyo 1130033, JapanUniv Tokyo, Grad Sch Pharmaceut Sci, Bunkyo Ku, Tokyo 1130033, Japan
Mitsunuma, Harunobu
Shibasaki, Masakatsu
论文数: 0引用数: 0
h-index: 0
机构:
Tokyo Kamiosaki, Inst Microbial Chem, Shinagawa Ku, Tokyo 1410021, JapanUniv Tokyo, Grad Sch Pharmaceut Sci, Bunkyo Ku, Tokyo 1130033, Japan
Shibasaki, Masakatsu
论文数: 引用数:
h-index:
机构:
Kanai, Motomu
Matsunaga, Shigeki
论文数: 0引用数: 0
h-index: 0
机构:
Univ Tokyo, Grad Sch Pharmaceut Sci, Bunkyo Ku, Tokyo 1130033, Japan
ERATO Japan Sci & Technol Agcy, Kanai Life Sci Catalysis Project, Bunkyo Ku, Tokyo 1130033, JapanUniv Tokyo, Grad Sch Pharmaceut Sci, Bunkyo Ku, Tokyo 1130033, Japan