نتایج جستجو برای: facile synthesis

تعداد نتایج: 419180  

Journal: :Chemical communications 2012
Kun Li Jian Hu Hui Liu Xiaofeng Tong

A DABCO-catalyzed (3 + 3) annulation between 2-(acetoxymethyl)buta-2,3-dienoate and sulfur ylides has been developed, which provides a facile method for the synthesis of 4H-pyrans bearing a vinyl sulfide group.

Journal: :Organic letters 2010
Marc C Kimber

A mild and facile synthesis of enamides has been developed, based on nucleophilic addition of electron-rich aromatic and heteroaromatics to an allenamide unit catalyzed by a gold salt. Yields for the transformation were 29-98%.

Journal: :Molecules 2013
Kosuke Nakashima Miho Murahashi Hiroki Yuasa Mariko Ina Norihiro Tada Akichika Itoh Shin-ichi Hirashima Yuji Koseki Tsuyoshi Miura

Asymmetric conjugate additions of branched aldehydes to vinyl sulfones promoted by sulfonamide organocatalyst 6 or 7 have been developed, allowing facile synthesis of the corresponding adducts with all-carbon quaternary stereocenters in excellent yields with up to 95% ee.

Journal: :Chemical communications 2009
Zhiyuan Tian Andrew D Shaller Alexander D Q Li

Polymeric fluorescent nanoparticles with covalently embedded perylene fluorophores were developed by facile synthesis strategy and their advanced features of extremely high fluorescence intensity, non-photoblinking and excellent photostability were experimentally confirmed at the single nanoparticle level.

Journal: :Chemical communications 2009
Joan Vignolle T Don Tilley

The facile one-phase synthesis of N-heterocyclic carbene-stabilized gold nanoparticles (NHC-AuNP) by reduction of NHC-gold(I) complexes and their self-assembly into 3D superlattices is presented.

Journal: :Materials advances 2021

Layered double hydroxide (LDH) nanostructures have attracted the attention of scientific community owing to their facile synthesis, interesting structure and morphology, been promising in field energy storage applications.

2018
Thang Phan Nguyen Abdullah Ozturk Jongee Park Woonbae Sohn Tae Hyung Lee Ho Won Jang Soo Young Kim

In this work, CsPbBr3 and PbSe nanocomposites were synthesized to protect perovskite material from self-enlargement during reaction. UV absorption and photoluminescence (PL) spectra indicate that the addition of Se into CsPbBr3 quantum dots modified the electronic structure of CsPbBr3, increasing the band gap from 2.38 to 2.48 eV as the Cs:Se ratio increased to 1:3. Thus, the emission color of ...

Journal: :Dalton transactions 2012
Hualun Cai Kai Xu Xin Liu Zien Fu Mingcai Chen

A facile method was reported for a robust octa(carboxyphenyl) functionalized silsesquioxane (OCS), which offers excellent potential as a nanobuilding-block for the preparation of functional materials. OCS was fully characterized by FT-IR, (1)H, (13)C, (29)Si-NMR, Maldi-TOF-MS spectra, and W-XRD analysis.

Journal: :Molecules 2007
Ales Marek Jiri Kulhanek Miroslav Ludwig Filip Bures

Five optically active imidazole derivatives have been synthesized via a facile 4-step reaction sequence starting from commercially available and inexpensive N-Cbz amino acids. While microwave assisted condensation was unsuccessful, the condensation of the corresponding alpha-bromoketones with formamidine acetate in liquid ammonia was revealed to be a useful method for the synthesis of such imid...

Herein we explore facile synthesis of 4-(3H)-Qunazolinone derivatives, achieved by the cyclocondensation of anthranilic acid, aromatic amines and triethyl orthoformate in presence of thiamine hydrochloride (Vitamin B1) as a catalyst, using grinding method. This protocol offers several advantages such as reusability of catalyst, excellent yield, shorter reaction time and economic availability.Qu...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید