共 45 条
[2+2] Cycloaddition Reactions of Butadienyl Ketene with 1,4-Diazabuta-1,3-dienes: Synthesis of Functionalized Butadienyl-4-iminomethyl-azetidin-2-ones and Butenylidene-butadienyl-[2,2′-biazetidine]-4,4′-diones
被引:14
作者:

Bains, Deepak
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机构:
Punjab Tech Univ, Dept Appl Sci, Kapurthala 144603, Punjab, India Punjab Tech Univ, Dept Appl Sci, Kapurthala 144603, Punjab, India

Kumar, Yogesh
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h-index: 0
机构:
Punjab Tech Univ, Dept Appl Sci, Kapurthala 144603, Punjab, India Punjab Tech Univ, Dept Appl Sci, Kapurthala 144603, Punjab, India

Singh, Prabhpreet
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机构:
Guru Nanak Dev Univ, Dept Chem, Amritsar 143005, Punjab, India Punjab Tech Univ, Dept Appl Sci, Kapurthala 144603, Punjab, India

Bhargava, Gaurav
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h-index: 0
机构:
Punjab Tech Univ, Dept Appl Sci, Kapurthala 144603, Punjab, India Punjab Tech Univ, Dept Appl Sci, Kapurthala 144603, Punjab, India
机构:
[1] Punjab Tech Univ, Dept Appl Sci, Kapurthala 144603, Punjab, India
[2] Guru Nanak Dev Univ, Dept Chem, Amritsar 143005, Punjab, India
关键词:
DIELS-ALDER CYCLOADDITION;
BETA-LACTAMS;
ASYMMETRIC-SYNTHESIS;
DIASTEREOSELECTIVE SYNTHESIS;
STEREOSELECTIVE-SYNTHESIS;
5-DIENYL PYRIMIDINONES;
BUILDING-BLOCKS;
RING EXPANSION;
1,3-DIAZABUTA-1,3-DIENES;
TRANSFORMATION;
D O I:
10.1002/jhet.2465
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
The reactions of butadienylketene with variety of 1,4-diazabuta-1,3-dienes are studied. The reactions resulted in the formation of previously unknown functionalized cis butadienyl-4-iminomethyl-azetidin-2-ones and butenylidene-butadienyl-[2,2'-biazetidine]-4,4'- diones. Butadienyl ketene reacts in [2+2] cycloaddition fashion with both iminic portion of 1,4-diazabuta-1,3-dienes and competitive [4+2] cycloaddition reaction of 1,4-diazabuta-1,3-dienes as 4 pi component with butadienyl ketene as 2 pi component are not observed.
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收藏
页码:1665 / 1669
页数:5
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