نتایج جستجو برای: pyrrole 2 carboxilic acid

تعداد نتایج: 3077423  

Journal: :Acta Crystallographica Section E Structure Reports Online 2010

Journal: :Journal of Synthetic Organic Chemistry, Japan 2005

2012
Rajendra Surasani Dipak Kalita A V Dhanunjaya Rao K B Chandrasekhar

Simple and efficient procedures for palladium-catalyzed cross-coupling reactions of N-substituted 4-bromo-7-azaindole (1H-pyrrole[2,3-b]pyridine), with amides, amines, amino acid esters and phenols through C-N and C-O bond formation have been developed. The C-N cross-coupling reaction of amides, amines and amino acid esters takes place rapidly by using the combination of Xantphos, Cs(2)CO(3), d...

Journal: :Journal of Analytical Science and Technology 2022

Abstract In this work, a human sweat-based wearable sensor for real-time glucose monitoring has been fabricated on cotton substrate after treating it with two-step polymerization of pyrrole. The pyrrole-treated fabric was coated solution copper sulphate pentahydrate to grow Cu layer. cotton/pyrrole/Cu treated the solutions acetate and manganese form Cu–Mn transition-metal alloy via electrochemi...

Journal: :Ukraïns’kij bìofarmacevtičnij žurnal 2019

Journal: :Acta Crystallographica Section E Structure Reports Online 2008

Journal: :The journal of physical chemistry. B 2008
David Zanuy Carlos Aleman

Ab initio quantum mechanical calculations at the MP2 level were used for an extensive study concerning the stability of hydrogen-bonded complexes formed by pyrrole and thiophene, which are the most common building blocks of conducting polymers, and DNA bases. Results indicated that very stable complexes were formed with pyrrole, which shows a clear tendency to form specific hydrogen-bonding int...

2009
Abdullah Aydogan Ahmet Akar

In the title compound, C(32)H(40)N(4)O(4), the pyrrole rings and ester groups adopt a 1,3-alternate conformation in which the alternating pyrrole and ester units are in opposite directions. The structure displays N-H⋯O hydrogen bonding and exhibits disorder [site occupancies of 0.81(2) and 0.71(2)] in the peripheral ethyl groups.

2017
Işıl Yenice Sinan Basceken Metin Balci

Intramolecular nucleophilic and electrophilic cyclization of N-alkyne-substituted pyrrole esters is described. Efficient routes towards the synthesis of pyrrolopyrazinone, pyrrolotriazinone and pyrrolooxazinone have been developed. First, N-alkyne-substituted pyrrole ester derivatives were synthesized. Introduction of various substituents into the alkyne functionality was accomplished by a copp...

Journal: :Acta Crystallographica Section E Structure Reports Online 2008

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