Generation and trapping of non-aromatic cycloimines via diazotization/dediazotization of N-amino cyclic amines: theoretical and experimental results

Ojha, Minita; Bansal, R. K.

doi:10.1007/s11224-020-01567-z

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Cited by 2 publications

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“…Experimental results could be rationalised with theoretical calculations. 21 The structure of the product 14 was established on the basis of the IR and 1 H NMR data. In the IR spectrum, intense absorption bands at 1725 cm À1 (C]O st.) and 1257 cm À1 (C(O)-O st.) conrm the ester groups.…”

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confidence: 99%

A new cross-conjugated mesomeric betaine

2021

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Section: Resultsmentioning

confidence: 99%

A new cross-conjugated mesomeric betaine

2021

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Synthesis of Dihydroisoquinoline and Dihydropyridine Derivatives via Asymmetric Dearomative Three-Component Reaction

Pan

Chen

et al. 2022

CCS Chem

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We reported the first asymmetric three-component nucleophilic addition/dearomative [4+2] cycloaddition/isomerization cascade of the transient dipoles generated from N-heteroarenes and allenoates with methyleneindolinones in the presence of chiral N,N′-dioxide/metal complexes, which enabled a rapid access to versatile chiral polycyclic N-heterocycles with good to excellent enantioselectivities under mild reaction conditions in spite of the strong background reaction, including 1,2-dihydroisoquinoline, 1,2-dihydropyridine derivatives and others. Meanwhile, a series of control experiments were conducted to elucidate the reaction mechanism and the roles of additives.

show abstract

Generation and trapping of non-aromatic cycloimines via diazotization/dediazotization of N-amino cyclic amines: theoretical and experimental results

Cited by 2 publications

References 34 publications

A new cross-conjugated mesomeric betaine

A new cross-conjugated mesomeric betaine

Synthesis of Dihydroisoquinoline and Dihydropyridine Derivatives via Asymmetric Dearomative Three-Component Reaction

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