93108-07-7Relevant articles and documents
A metal-free desulfurizing radical reductive C-C coupling of thiols and alkenes
Qin, Qixue,Wang, Weijing,Zhang, Cheng,Song, Song,Jiao, Ning
supporting information, p. 10583 - 10586 (2019/09/06)
An intermolecular reductive C-C coupling of electrophilic alkyl radicals and alkenes has been developed. Thiols were used as both hydrogen-donating reagents and alkyl radical precursors in the presence of triethyl phosphite and radical initiator. A wide range of alkenes, including styrenes, and aliphatic olefins were well tolerated in this transformation. Mechanistic studies indicated that a phosphite promoted radical desulfurization of thiols to access electrophilic alkyl radicals and a radical chain propagation process may be involved in this transformation.
METHODS FOR PRODUCING BERAPROST AND ITS DERIVATIVES
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, (2015/12/08)
The present invention is directed to methods for preparing Beraprost and novel synthetic intermediates for Beraprost. In one aspect, a process is provided to produce a pharmaceutical compound represented by the general Formula (I) via a radical cyclization route. The process is completed in fewer steps than the known synthetic methods and may be conducted to prepare commercially useful quantities. In another aspect, synthetic methods are provided for producing Beraprost and its derivatives,, which are stereoselective, efficient, scalable and economical. In another aspect, substantially isomerically pure compounds and intermediates are produced by the above processes.
Hydroformylation of acyclic monoethylenically unsaturated compounds to corresponding terminal aldehydes
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, (2008/06/13)
A process for hydroformylatiog acyclic monoethylenically unsaturated compounds to corresponding terminal aldehydes using a Group VIII transition metal and selected multidentate phosphite ligands.
PHOTOLACTONIZATION : A NOVEL SYNTHETIC ENTRY TO MACROLIDES
Quinkert, Gerhard,Billhardt, Uta-Maria,Jakob, Harald,Fischer, Gerd,Glenneberg, Juergen,et al.
, p. 822 - 861 (2007/10/02)
o-Quinol acetates, hydroxyalkyalted at C(6), are easily accesible from simple phenols by Wessely acetoxylation (preferentially catalyzed by BF3).On UV irradiation ( in the presence of an appropriate tertiary amine), they are smoothly converted to macrocyclic lactones.Subtle conditions have been elaborated to lead to high overall yields, and the scope of the conversion of phenols to macrolides has been elucidated.
