65223-07-6Relevant articles and documents
Photocatalytic Umpolung Synthesis of Nucleophilic π-Allylcobalt Complexes for Allylation of Aldehydes
Shi, Caizhe,Li, Fusheng,Chen, Yuqing,Lin, Shuangjie,Hao, Erjun,Guo, Zhuowen,Wosqa, Urwa Tul,Zhang, Dandan,Shi, Lei
, p. 2992 - 2998 (2021/03/09)
The concept of "umpolung"reactivity of π-allylmetal complexes has been developed as a powerful method for the allylation of aldehydes. This paper describes the photocatalytic umpolung strategy for the synthesis of nucleophilic allylcobalt complexes through a single-electron-transfer (SET) process. This strategy enables the metallaphotoredox allylation of carbonyls with allyl acetate using organic N,N-diisopropylethylamine as the terminal reductant bypassing the use of a stoichiometric amount of metals. Ultraviolet-visible spectroscopy was used to monitor the redox changes of cobalt in the reaction.
A catalytic enantioselective allylation reaction of aldehydes in an aqueous medium
Loh, Teck-Peng,Zhou, Jian-Rong
, p. 5261 - 5264 (2007/10/03)
A modified Yamamoto-Yanagisawa's catalyst (S)-Tol-BINAP·AgNO3 was successfully applied to a catalytic enantioselective allylation reaction of aldehydes in an aqueous system. The reactions with aromatic aldehydes afforded the desired products in
Method for producing furfuryl alcohols
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, (2008/06/13)
A method for producing a furfuryl alcohol useful as an intermediate for producing agricultural chemicals, medicines, perfumes, etc., represented by the general formula (I), STR1 wherein R1 represents a hydrogen atom or a methyl group, and R2 represents an allyl or propargyl group, which comprises reacting a furfural represented by the general formula (II), STR2 wherein R1 has the same meaning as described above, with a halogen compound represented by the general formula, wherein X represents a halogen atom and R2 has the same meaning as described above, in water or a water/organic solvent mixed solvent in the presence of at least one organic quaternary ammonium salt selected from the group consisting of tetra(C2 -C5 alkyl)amonium halide, benzyltri (C2 -C3 alkyl)ammonium chloride, dodecyltrimethylammonium bromide and cetyltrimethylammonium chloride as well as an inorganic ammonium salt and zinc.