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Magnesium catalyzed hydroamination of carbodiimides and hydroboration of cyanamides.

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Title: Magnesium catalyzed hydroamination of carbodiimides and hydroboration of cyanamides.
Authors: Das, Anubhab1 (AUTHOR), Mukhopadhyay, Sayantan1 (AUTHOR), Rajput, Sagrika1 (AUTHOR), Nembenna, Sharanappa1 (AUTHOR) snembenna@niser.ac.in
Source: Dalton Transactions: An International Journal of Inorganic Chemistry. 12/21/2025, Vol. 54 Issue 47, p17553-17563. 11p.
Subjects: Hydroamination, Magnesium hydride, Hydroboration, Carbodiimides, Nitrogen compounds, Catalysts, Catalytic activity
Abstract: A β-diketiminate magnesium hydride complex, Mg-1 [{LMgH}2; L = DepNacnac = (DepNCMe)2CH; Dep = 2,6-Et2-C6H3], catalyzes the hydroamination of carbodiimides with primary aryl amines and the hydroboration of cyanamides with HBpin. The reactions proceed efficiently under mild conditions, affording a range of guanidines, N-borylformamidines, and N,N-bis-boryldiamines in high yields. Detailed stoichiometric experiments and the successful isolation of active catalysts/key intermediates, i.e., magnesium anilide [{LMg-NH-C6H4-4-Me}2] (Mg-2), magnesium amidinate [{LMg–NCH–N(Et2)}2] (Mg-3), and magnesium guanidinate [LMg(NiPr)(N-p-tolyl)C-NH-iPr] (Int-A2) complexes, provided insights into the reaction mechanisms, enabling the elucidation of plausible catalytic cycles. These results highlight the potential of Earth-abundant magnesium-based catalysts for synthesizing valuable nitrogen-containing compounds. [ABSTRACT FROM AUTHOR]
Copyright of Dalton Transactions: An International Journal of Inorganic Chemistry is the property of Royal Society of Chemistry and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 189717802
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  Data: Magnesium catalyzed hydroamination of carbodiimides and hydroboration of cyanamides.
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  Data: <searchLink fieldCode="AR" term="%22Das%2C+Anubhab%22">Das, Anubhab</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mukhopadhyay%2C+Sayantan%22">Mukhopadhyay, Sayantan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rajput%2C+Sagrika%22">Rajput, Sagrika</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nembenna%2C+Sharanappa%22">Nembenna, Sharanappa</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> snembenna@niser.ac.in</i>
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  Data: <searchLink fieldCode="JN" term="%22Dalton+Transactions%3A+An+International+Journal+of+Inorganic+Chemistry%22">Dalton Transactions: An International Journal of Inorganic Chemistry</searchLink>. 12/21/2025, Vol. 54 Issue 47, p17553-17563. 11p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Hydroamination%22">Hydroamination</searchLink><br /><searchLink fieldCode="DE" term="%22Magnesium+hydride%22">Magnesium hydride</searchLink><br /><searchLink fieldCode="DE" term="%22Hydroboration%22">Hydroboration</searchLink><br /><searchLink fieldCode="DE" term="%22Carbodiimides%22">Carbodiimides</searchLink><br /><searchLink fieldCode="DE" term="%22Nitrogen+compounds%22">Nitrogen compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Catalysts%22">Catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Catalytic+activity%22">Catalytic activity</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: A β-diketiminate magnesium hydride complex, Mg-1 [{LMgH}2; L = DepNacnac = (DepNCMe)2CH; Dep = 2,6-Et2-C6H3], catalyzes the hydroamination of carbodiimides with primary aryl amines and the hydroboration of cyanamides with HBpin. The reactions proceed efficiently under mild conditions, affording a range of guanidines, N-borylformamidines, and N,N-bis-boryldiamines in high yields. Detailed stoichiometric experiments and the successful isolation of active catalysts/key intermediates, i.e., magnesium anilide [{LMg-NH-C6H4-4-Me}2] (Mg-2), magnesium amidinate [{LMg–NCH–N(Et2)}2] (Mg-3), and magnesium guanidinate [LMg(NiPr)(N-p-tolyl)C-NH-iPr] (Int-A2) complexes, provided insights into the reaction mechanisms, enabling the elucidation of plausible catalytic cycles. These results highlight the potential of Earth-abundant magnesium-based catalysts for synthesizing valuable nitrogen-containing compounds. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Dalton Transactions: An International Journal of Inorganic Chemistry is the property of Royal Society of Chemistry and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1039/d5dt02335a
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 11
        StartPage: 17553
    Subjects:
      – SubjectFull: Hydroamination
        Type: general
      – SubjectFull: Magnesium hydride
        Type: general
      – SubjectFull: Hydroboration
        Type: general
      – SubjectFull: Carbodiimides
        Type: general
      – SubjectFull: Nitrogen compounds
        Type: general
      – SubjectFull: Catalysts
        Type: general
      – SubjectFull: Catalytic activity
        Type: general
    Titles:
      – TitleFull: Magnesium catalyzed hydroamination of carbodiimides and hydroboration of cyanamides.
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          Name:
            NameFull: Das, Anubhab
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            NameFull: Mukhopadhyay, Sayantan
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            NameFull: Rajput, Sagrika
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            NameFull: Nembenna, Sharanappa
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            – D: 21
              M: 12
              Text: 12/21/2025
              Type: published
              Y: 2025
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              Value: 54
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              Value: 47
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