Phosphine‐substituted N‐coordinated Stannylene: Efficient Catalyst in Ketone Hydroboration

P‐substituted stannylene (Ph2PCH2)(L)Sn containing N,C,N‐pincer ligand (L=[2,6‐(Me2NCH2)2C6H3]) was prepared. The complex was further oxidised to prepare P‐substituted organotin (IV) compounds (Ph2PCH2)(L)SnX2. Finally, P(S)‐substituted N‐coordinated stannylene [(Ph2P(S)CH2](L)Sn containing P atom i...

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Published inEuropean journal of inorganic chemistry Vol. 27; no. 23
Main Authors Moždiak, Ondřej, Růžičková, Zdeňka, Erben, Milan, Dostál, Libor, Jambor, Roman
Format Journal Article
LanguageEnglish
Published Weinheim Wiley Subscription Services, Inc 13.08.2024
Subjects
Atomic properties
Catalysts
Hydroboration
Ketones
Oxidation
Phosphines
pincer ligand
stannylene
Substitutes
Valence
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Summary:P‐substituted stannylene (Ph2PCH2)(L)Sn containing N,C,N‐pincer ligand (L=[2,6‐(Me2NCH2)2C6H3]) was prepared. The complex was further oxidised to prepare P‐substituted organotin (IV) compounds (Ph2PCH2)(L)SnX2. Finally, P(S)‐substituted N‐coordinated stannylene [(Ph2P(S)CH2](L)Sn containing P atom in the oxidation state +V was also prepared. All these P‐substituted organotins were tested as catalysts for the hydroboration of ketones to see the effect of oxidation numbers of Sn/P atoms. Stannylene (Ph2PCH2)(L)Sn showed remarkable conversions with TOF about 1800 h−1 and is suitable for the reduction of several ketones. The mechanistic studies are also discussed. P‐substituted stannylene (Ph2PCH2)(L)Sn containing N,C,N‐pincer ligand as remarkable catalyst for the hydroboration of ketones with the conversions TOF about 1800 h−1.
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.202400193