23784-75-0Relevant academic research and scientific papers
A Convoluted Polymeric Imidazole Palladium Catalyst: Structural Elucidation and Investigation of the Driving Force for the Efficient Mizoroki-Heck Reaction
Sato, Takuma,Ohno, Aya,Sarkar, Shaheen M.,Uozumi, Yasuhiro,Yamada, Yoichi M. A.
, p. 2141 - 2148 (2015)
MPPI-Pd (7 mol ppm Pd), prepared from poly(N-isopropylacrylamide-co-N-vinylimidazole) and (NH4)2PdCl4 by our molecular convolution method, promoted the Mizoroki-Heck reaction in water to give the corresponding coupling pro
Cellulose supported Pd(II) complex catalyzed carbon-carbon bonds formation
Sarkar, Shaheen M.,Rashid,Karim, Kaykobad Md. Rezaul,Mustapha, Siti Noor Hidayah,Lian, Yuen Mei,Zamri, Normaiza,Khan, Md. Maksudur Rahman,O'Reilly, Emmet J.,Rahman, Md. Lutfor
, p. 2856 - 2861 (2019/01/03)
Corn-cobs are an agro-industrial waste and composed of cellulose mostly. In this study cellulose was isolated from the waste corn-cobs and modified to polymeric hydroxamic acid palladium complex 1 and characterized by using a variety of spectroscopic methods such as field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and inductively coupled plasma atomic emission spectroscopy (ICP-AES). The complex 1 exhibited high catalytic activity towards Suzuki and Heck coupling reactions of activated and deactivated aryl halides to give the respective coupling products with high yield. Moreover, the complex 1 was recovered and recycled five times with no considerable loss of catalytic overall performance.
Poly(hydroxamic acid) palladium catalyst for heck reactions and its application in the synthesis of Ozagrel
Sarkar, Shaheen M.,Rahman, Md. Lutfor,Chong, Kwok Feng,Yusoff, Mashitah Mohd
, p. 103 - 110 (2017/04/26)
Bio-waste corn-cob cellulose supported poly(hydroxamic acid) palladium complex was synthesized and it is characterized using some different techniques such as FTIR, FESEM, HRTEM, EDX, XPS, UV–vis, TGA and ICP-AES analyses. The cellulose supported heterogeneous palladium complex showed high stability and catalytic activity toward Mizoroki-Heck reaction of aryl/heteroaryl halides and arenediazonium tetrafluoroborate with a variety of olefins to give the corresponding coupling products in up to 97% yield. The palladium complex was also applied to the synthesis of Ozagrel a thromboxane A2-synthetase inhibitor with excellent yield. The complex was separated from the reaction mixture by simple filtration and repeatedly used up to seven times without significant loss of its catalytic performance.
Pyridinyl functionalized MCM-48 supported highly active heterogeneous palladium catalyst for cross-coupling reactions
Sarkar, Shaheen M.,Rahman, Md. Lutfor,Yusoff, Mashitah Mohd
, p. 19630 - 19637 (2015/05/27)
An MCM-48 supported 2-pyridinylmethanimine Pd-catalyst was found to be a highly efficient catalyst in the Mizoroki-Heck, Suzuki-Miyaura and copper-free Sonogashira cross-coupling reactions of aryl halides under aqueous reaction conditions. The catalyst efficiently promoted these coupling reactions with ppm levels of palladium to afford the corresponding coupling products in up to 98% yield. The supported Pd-catalyst was readily recovered and reused several times without significant loss of its catalytic activity. This journal is
