Catalytic Reductive Dehydration of Tertiary Amides to Enamines under Hydrosilylation Conditions
摘要:
Tertiary amides are efficiently reduced to their corresponding enamines under hydrosilylation conditions, using a transition-metal-free catalytic protocol based on t-BuOK (5 mol %) and (MeO)(3)SiH or (EtO)(3)SiH as the reducing agent. The enamines were formed with high selectivity in good-to-excellent yields.
Catalytic Reductive Dehydration of Tertiary Amides to Enamines under Hydrosilylation Conditions
摘要:
Tertiary amides are efficiently reduced to their corresponding enamines under hydrosilylation conditions, using a transition-metal-free catalytic protocol based on t-BuOK (5 mol %) and (MeO)(3)SiH or (EtO)(3)SiH as the reducing agent. The enamines were formed with high selectivity in good-to-excellent yields.
NHC/Nickel(II)‐Catalyzed [3+2] Cross‐Dimerization of Unactivated Olefins and Methylenecyclopropanes
作者:Jian‐Qiang Huang、Chun‐Yu Ho
DOI:10.1002/anie.201914542
日期:2020.3.23
typical hydroalkenylation reactivity was observed for the first time by using a [NHC-Ni(allyl)]BArF catalyst (NHC=N-heterocyclic carbene). Results show that the C-C cleavage of 1 did not involve a Ni0 oxidative addition, which was crucial in former systems. Thus the method reported here emerges as a complementary method for attaining highly chemo- and regioselectivesynthesis of methylenecyclopentanes
AGRICULTURAL PLANT-PROTECTING AGENTS CONTAINING DIPEPTIDE DERIVATIVE AS ACTIVE INGREDIENT
申请人:REPUBLIC OF KOREA (RURAL DEVELOPMENT ADMINISTRATION)
公开号:US20150119251A1
公开(公告)日:2015-04-30
Provided is an agricultural plant-protecting agent including a dipeptide derivative or an agro-pharmaceutically acceptable salt thereof as an active ingredient, which has a plant disease-preventing effect, a plant growth-promoting effect, and a plant immunity-activating effect.
[EN] POLY(ETHYLENE GLYCOL) DERIVATIVES FOR METAL-FREE CLICK CHEMISTRY<br/>[FR] DÉRIVÉS DE POLY(ÉTHYLÈNEGLYCOL) POUR CHIMIE CLICK SANS MÉTAL
申请人:INTEZYNE TECHNOLOGIES INC
公开号:WO2011112969A1
公开(公告)日:2011-09-15
The present invention provides bifunctional polymers, methods of preparing the same, and intermediates thereto. These compounds are useful in a variety of applications including the PEGylation of biologically active molecules. The invention also provides methods of using said compounds and compositions thereof.
KIT FOR PRODUCING MOLECULAR PROBE FOR PET SCREENING FOR DRUG DISCOVERY
申请人:Doi Hisashi
公开号:US20110064662A1
公开(公告)日:2011-03-17
Disclosed is a kit for use in the production of a molecular probe for PET drug screening for the purpose of producing a compound containing a short-lived radionuclide for PET applications. Specifically disclosed is a kit comprising a compound represented by the formula (I), (II) or (III) or a salt thereof. In the formulae, X
1
, X
2
, X
3
, X
4
, X
5
and X
6
are as defined in the description.