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Metal-Free Synthesis of Benzimidazoles via Oxidative Cyclization of D-Glucose with o-Phenylenediamines in Water
被引:34
|作者:
Raja, Dineshkumar
[1
]
Philips, Abigail
[1
]
Palani, Pushbaraj
[1
]
Lin, Wei-Yu
[2
]
Devikala, Sundaramurthy
[1
]
Senadi, Gopal Chandru
[1
]
机构:
[1] SRM Inst Sci & Technol, Dept Chem, Kattankulathur 603203, Tamil Nadu, India
[2] Kaohsiung Med Univ, Dept Med & Appl Chem, Kaohsiung 807, Taiwan
来源:
关键词:
CATALYZED SYNTHESIS;
HIGHLY EFFICIENT;
N-HETEROCYCLES;
PRIMARY AMINES;
ACIDS;
2-NITROANILINES;
CONDENSATION;
METHYLATION;
CONVERSION;
COMPLEXES;
D O I:
10.1021/acs.joc.0c01053
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
D-Glucose has been identified as an efficient C1 synthon in the synthesis of benzimidazoles from o-phenylenediamines via an oxidative cyclization strategy. Isotopic studies with C-13(6)-D-glucose and D2O unambiguously confirmed the source of methine. The notable features of this method include the following: broad functional group tolerance, a biorenewable methine source, excellent reaction yields, a short reaction time, water as an environmentally benign solvent, and the synthesis of vitamin B-12 component on the gram scale.
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页码:11531 / 11540
页数:10
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