Pd−C-Induced Catalytic Transfer Hydrogenation with Triethylsilane
摘要:
In situ generation of molecular hydrogen by addition of triethylsilane to palladium-charcoal catalyst results in rapid and efficient reduction of multiple bonds, azides, imines, and nitro groups, as well as benzyl group and allyl group deprotection under mild, neutral conditions.
mali. Compounds C1 and C2 showed the higher activity with average EC50 values of 17.4 and 18.5 μg/mL and great potential for development of new plant antifungal agents. The structure-activity relationship analysis showed that both the substitution pattern of the phenyl ring and the alkylgroup in the alcohol moiety significantly influences the activity. There exists complexly comprehensive effect between
Ionic Liquid Immobilized Palladium Nanoparticle - Graphene Hybrid as Active Catalyst for Heck Reaction
作者:Vivek Srivastava
DOI:10.2174/1570178611666141201223344
日期:2015.1.1
We engineered, graphene based Pd -Nano composites (Pd/RGO) and tested them to catalyze the Heck reaction
in [bmim] NTf2 solvent system. High yield, easy product isolation, recycling of the catalytic system and ligand free approach
are the main outcomes of this proposed protocol. The proposed protocol was further exploited for the successful
synthesis of 3-styryl coumarins in good yield.
[EN] BIOMASS-DERIVED POLYMERS AND COPOLYMERS INCORPORATING MONOLIGNOLS AND THEIR DERIVATIVES<br/>[FR] POLYMÈRES ET COPOLYMÈRES D'ORIGINE BIOMASSIQUE CONTENANT DES MONOLIGNOLS ET LEURS DÉRIVÉS
申请人:UNIV CALIFORNIA
公开号:WO2017066699A1
公开(公告)日:2017-04-20
The invention includes methods and materials for forming and manipulating aromatic-based polymers and copolymers using biomass compounds as starting materials. Embodiments of the invention can be used in processes designed to replace those used in the petrochemical industry. Typical embodiments of the invention include methods and materials for forming and/or modifying compounds including dicarboxylic acid ester dimers, benzoxazines and dicarboxylic acid ether dimers. Embodiments of the invention further provide methods and materials for utilizing these compounds to form commercially desirable polymers having structures and physical properties akin to those found in polymers formed from petroleum products.
sources of aromatic carbon, a desirable moiety in high-performance polymers. Herein we describe the synthesis and characterization of a series of 21 poly(ether-amide)s that incorporate hydroxycinnamates derived from lignin. Three different hydroxycinnamates (coumaric acid, ferulic acid, sinapinic acid) were incorporated into dimers, and then copolymerized with a series of seven aliphatic and aromatic diamines