Thermodynamic Hydricities of Biomimetic Organic Hydride Donors
作者:Stefan Ilic、Usha Pandey Kadel、Yasemin Basdogan、John A. Keith、Ksenija D. Glusac
DOI:10.1021/jacs.7b13526
日期:2018.4.4
Thermodynamic hydricities (Δ GH-) in acetonitrile and dimethyl sulfoxide have been calculated and experimentally measured for several metal-free hydride donors: NADH analogs (BNAH, CN-BNAH, Me-MNAH, HEH), methylene tetrahydromethanopterin analogs (BIMH, CAFH), acridine derivatives (Ph-AcrH, Me2N-AcrH, T-AcrH, 4OH, 2OH, 3NH), and a triarylmethane derivative (6OH). The calculated hydricity values, obtained
[EN] HYDRIDE DONORS AS AN ADDITIVE FOR REDUCING LOW SPEED PRE-IGNITION EVENTS<br/>[FR] DONNEURS D'HYDRURE UTILISÉS EN TANT QU'ADDITIF POUR RÉDUIRE DES ÉVÉNEMENTS DE PRÉ-ALLUMAGE À FAIBLE VITESSE
申请人:CHEVRON ORONITE CO
公开号:WO2020070672A1
公开(公告)日:2020-04-09
Fuel and lubricant compositions are provided that contain an organic hydride-based reductant. Methods for preventing or reducing low speed pre-ignition events in an internal combustion engines using these compositions are also provided.
From Cationic to Anionic Helicenes: New Reactivity through Umpolung
Using a two-step reduction/metalation procedure, highly stable chiral carbeniumions are transformed into reactive carbanion intermediates. Interesting polar ketone and thioamide products are the results of this umpolung that occurs with complete retention of configuration of the helical backbone.