58114-05-9Relevant articles and documents
Nickel-Catalyzed Multicomponent Coupling: Synthesis of α-Chiral Ketones by Reductive Hydrocarbonylation of Alkenes
Chen, Jian,Zhu, Shaolin
supporting information, p. 14089 - 14096 (2021/09/13)
A nickel-catalyzed, multicomponent regio- and enantioselective coupling via sequential hydroformylation and carbonylation from readily available starting materials has been developed. This modular multicomponent hydrofunctionalization strategy enables the straightforward reductive hydrocarbonylation of a broad range of unactivated alkenes to produce a wide variety of unsymmetrical dialkyl ketones bearing a functionalized α-stereocenter, including enantioenriched chiral α-aryl ketones and α-amino ketones. It uses chiral bisoxazoline as a ligand, silane as a reductant, chloroformate as a safe CO source, and a racemic secondary benzyl chloride or an N-hydroxyphthalimide (NHP) ester of a protected α-amino acid as the alkylation reagent. The benign nature of this process renders this method suitable for late-stage functionalization of complex molecules.
NOVEL 5-SUBSTITUTED 7-AMINO-[1,3]THIAZOLO[4,5-D]PYRIMIDINE DERIVATIVES
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Page/Page column 32-33, (2010/11/24)
There are disclosed novel 5-substituted 7-amino-[1,3]thiazolo[4,5-d]pyrimidine derivatives of formula (I) wherein R1, R2, R3, R4 and R5 are as defined in the specification, and pharmaceutically accept
Novel di-(3'-hydroxyphenyl)-alkane compounds, process of preparation and their use in medicine
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, (2008/06/13)
Compounds of di-(3'-hydroxyphenyl)-alkanes and their methyl ethers, of the formula STR1 wherein R is alkyl and R' is H or methyl, have activity against hormone-dependent breast carcinoma.