Dr. Alexander Antonov

Dr. Alexander Antonov

Group Leader
Regensburg University
Sterically facilitated meta-lithiation of arenes, containing electron donating groups featured image

Sterically facilitated meta-lithiation of arenes, containing electron donating groups

The influence of the bulky trimethylsilyl substituent on the selectivity of metallation of dimethylaniline, anisole and 1-dimethylaminonaphthalene is studied. The neighboring SiMe3 …

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Dr. Alexander Antonov
Proton-induced fluorescence in modified quino[7,8-h]quinolines: dual sensing for protons and π-donors featured image

Proton-induced fluorescence in modified quino[7,8-h]quinolines: dual sensing for protons and π-donors

The synthesis, as well as spectral, structural and photoluminescence properties of dipyrido[3,2-e:2′,3′-h]acenaphthene 5 and quinazolino[7,8-h]quinazolines 6 as representatives of …

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Prof. Alexander Pozharskii
Non-covalent Li···H interaction in the synthesis of peri-disubstituted naphthalene proton sponges featured image

Non-covalent Li···H interaction in the synthesis of peri-disubstituted naphthalene proton sponges

Noncovalent Li···H interaction was utilised as a tool for the second lithiation of 4-lithio-1,8-bis(dimethylamino)naphthalene with n-BuLi in the presence of TMEDA in hexane. …

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Dr. Alexander Antonov

1,8-Bis(dimethylamino)naphthyl-2-ketimines: Inside vs outside protonation

The structure and protonation behaviour of four ortho-arylketimines of 1,8-bis(dimethylamonio)naphthalene with a different number of methoxy groups in an aromatic substituent were …

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Dr. Alexander Antonov
Laying the way to meta-functionalization of naphthalene proton sponge via the use of Schlosser's superbase featured image

Laying the way to meta-functionalization of naphthalene proton sponge via the use of Schlosser's superbase

Lithiation of 1,8-bis(dimethylamino)naphthalene (DMAN) with Schlosser's superbase (n-BuLi–t-BuOK) in the presence of TMEDA in hexane was examined. It has been shown that, compared …

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Dr. Alexander Antonov
Reaction of 2-Trifluoroacetyl-1,8-Bis(dimethylamino)naphthalene with Strong Organic Bases: Acidic Ionization of 1-NMe2 Group Resulting in the Formation of Benzo[g]indole Derivatives versus Nucleophilic Addition to C=O Group featured image

Reaction of 2-Trifluoroacetyl-1,8-Bis(dimethylamino)naphthalene with Strong Organic Bases: Acidic Ionization of 1-NMe2 Group Resulting in the Formation of Benzo[g]indole Derivatives versus Nucleophilic Addition to C=O Group

A novel approach to pyrrole ring closure in 2-trifluoroacetyl- and 2-ethoxycarbonyl-1,8-bis(dimethylamino)naphthalenes via treatment with …

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Dr. Alexander Antonov
10-Dimethylamino derivatives of benzo[h]quinoline and benzo[h]quinazolines: fluorescent proton sponge analogues with opposed peri-NMe2/–N= groups. How to distinguish between proton sponges and pseudo-proton sponges featured image

10-Dimethylamino derivatives of benzo[h]quinoline and benzo[h]quinazolines: fluorescent proton sponge analogues with opposed peri-NMe2/–N= groups. How to distinguish between proton sponges and pseudo-proton sponges

For the first time, 10-dimethylamino derivatives of benzo[h]quinoline 6 and benzo[h]quinazoline 7a–e as mixed analogues of archetypal 1,8-bis(dimethylamino)naphthalene (“proton …

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Prof. Alexander Pozharskii
Tandem synthesis of 10- dimethylaminobenzo[h]quinazolines from 2-ketimino-1,8-bis(dimethylamino)naphthalenes via nucleophilic replacement of the unactivated aromatic NMe2 group featured image

Tandem synthesis of 10- dimethylaminobenzo[h]quinazolines from 2-ketimino-1,8-bis(dimethylamino)naphthalenes via nucleophilic replacement of the unactivated aromatic NMe2 group

For the first time, 10-dimethylamino derivatives of benzo[h]quinoline 6 and benzo[h]quinazoline 7a–e as mixed analogues of archetypal 1,8-bis(dimethylamino)naphthalene (“proton …

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Dr. Vladimir Mikshiev
Ring lithiation of 1,8-bis(dimethylamino)naphthalene: another side of the „proton sponge coin” featured image

Ring lithiation of 1,8-bis(dimethylamino)naphthalene: another side of the „proton sponge coin”

It has been found that 1,8-bis(dimethylamino)naphthalene (DMAN), unlike N,N-dimethylaniline, undergoes ring metallation in the n-BuLi–TMEDA–Et2O system with a low selectivity and …

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Dr. Alexander Antonov
Base-promoted transformation of 2-C(O)R-1,8-bis(dimethylamino)naphthalenes into benzo[g]indole derivatives featured image

Base-promoted transformation of 2-C(O)R-1,8-bis(dimethylamino)naphthalenes into benzo[g]indole derivatives

1,8-Bis(dimethylamino)naphthalenes bearing 2-positioned trifluoroacetyl or ethoxycarbonyl group on treatment with 2-lithio-1,8-bis-dimethylamino)naphthalene undergo base-promoted …

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