866940-63-8Relevant academic research and scientific papers
NEW PROCESS
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Page/Page column 72, (2017/06/02)
The present invention relates to a new chemical synthesis, intermediates and catalysts useful for the preparation of the neprilysin (NEP) inhibitor sacubitril. It further relates to new intermediate compounds and their use for said new chemical synthesis
Organocatalysts and methods of use in chemical synthesis
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Page/Page column 19, (2009/04/24)
The present invention is directed to compositions comprising organocatalysts that facilitate stereo-selective reactions and the method of their synthesis and use. Particularly, the invention relates to metal-free organocatalysts for facilitation of stereo
A novel bis-thiourea organocatalyst for the asymmetric aza-Henry reaction
Rampalakos, Constantinos,Wulff, William D.
supporting information; experimental part, p. 1785 - 1790 (2009/08/07)
A novel bis-thiourea/2,2′-diaminobinaphthalene (BINAM)-based catalyst for the asymmetric aza-Henry reaction has been developed. This catalyst promotes the reaction of N-Boc imines with nitroalkanes to afford β-nitroamines with good yields and high enantioselectivities. This catalyst has the advantage that it can be prepared in a single step from commercially available materials. A model is proposed for the catalyst action where both components of the reaction are activated simultaneously by hydrogen bonding. Regardless of the mechanism, the success of the present catalyst demonstrates the potential of bis-thioureas as an interesting class of relatively unexplored catalysts.
Chiral binaphthyl-derived amine-thiourea organocatalyst-promoted asymmetric Morita-Baylis-Hillman reaction
Wang, Jian,Li, Hao,Yu, Xinhong,Zu, Liansuo,Wang, Wei
, p. 4293 - 4296 (2007/10/03)
(Chemical Equation Presented) A new bifunctional binaphthyl-derived amine thiourea organocatalyst has been developed to promote enantioselective Morita-Baylis-Hillman reaction of cyclohexenone with a wide range of aldehydes. The process, catalyzed by the
Organocatalytic asymmetric michael addition of 2,4-pentandione to nitroolefins
Wang, Jian,Li, Hao,Duan, Wenhu,Zu, Liansuo,Wang, Wei
, p. 4713 - 4716 (2007/10/03)
(Chemical Equation Presented) A novel binaphthyl-derived amine thiourea organocatalyst has been developed and demonstrated to efficiently catalyze Michael addition reactions (using as low as 1 mol % loading) of diketones to nitroalkenes with remarkably hi
