Electron deficient borane-mediated hydride abstraction in amines: stoichiometric and catalytic processes
نویسندگان
چکیده
Borane mediated hydride abstraction of amines efficiently generates useful iminium salts. This review explores this fascinating reactivity and discusses how the intermediates are utilised in a variety stoichiometric catalytic processes.
منابع مشابه
Stoichiometric and catalytic Sn-mediated dehydrocoupling of primary phosphines.
The room-temperature reactions of stannocene, Cp*(2)Sn, with a range of primary phosphines, RPH(2), result in diphosphanes [RP(H)P(H)R]. The reactions involving Cp*(2)SnCl(2), however, result in catalytic dehydrocoupling; the first example of main group metal catalysed dehydrocoupling to be identified.
متن کاملStoichiometric and catalytic synthesis of alkynylphosphines.
Alkynylphosphines or their borane complexes are available either through C-P bond forming reactions or through modification of the phosphorus or the alkynyl function of various alkynyl phosphorus derivatives. The latter strategy, and in particular the one involving phosphoryl reduction by alanes or silanes, is the method of choice for preparing primary and secondary alkynylphosphines, while the...
متن کاملStructural, Magnetic and Catalytic Properties of Non-Stoichiometric Lanthanum Ferrite Nano-Perovskites in Carbon Monoxide Oxidation
Perovskite-type oxides of LaFe(1+x)O(3+δ) (x = 0.0, 0.2, 0.5 and 0.7) were synthesized by citrate sol–gel methodto ensure the formation of nanosized perovskites. The physicochemical properties of these LaFe(1+x)O(3+δ)materials were characterized by thermal gravimetric/differential analyses, Fourier transform infraredspectroscopy, X-ray powder diffraction, scanning electron and...
متن کاملHypervalent Iodine-Mediated Fluorination of Styrene Derivatives: Stoichiometric and Catalytic Transformation to 2,2-Difluoroethylarenes.
Fluorination of styrene derivatives with a reagent system composed of μ-oxo-bis[trifluoroacetato(phenyl)iodine] and a pyridine·HF complex gave the corresponding (2,2-difluoroethyl)arenes in good yields. Similarly, the reagent of PhI(OCOCF3)2 and the pyridine·HF complex acted as a fluorinating agent for styrene derivatives. The fluorination of styrene derivatives with the pyridine·HF complex und...
متن کاملGermanium(II) hydride mediated reduction of carbon dioxide to formic acid and methanol with ammonia borane as the hydrogen source.
LGeOC(O)H (3) (L = CH{(CMe)(2,6-iPr(2)C(6)H(3)N)}(2)), from the straightforward conversion of LGeH (2) with CO(2), reacts with LiH(2)NBH(3) giving 2 and LiOC(O)H (4), while the corresponding reaction of 3 with H(3)NBH(3) after aqueous workup releases 2 and CH(3)OH (5). This opens the possibility to use hydride 2 as a mediator in the reduction of carbon dioxide to formic acid and methanol.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical Society Reviews
سال: 2021
ISSN: ['0306-0012', '1460-4744']
DOI: https://doi.org/10.1039/d0cs00531b