Zobrazeno 1 - 10
of 267
pro vyhledávání: '"Mieczyslaw Makosza"'
Autor:
Mieczysław Mąkosza, Michał Fedoryński
Publikováno v:
Molecules, Vol 28, Iss 24, p 7957 (2023)
Due to the electronic configuration of the atom and charge of the nucleus, the chlorine in organic molecules can exert a variety of effects. It can depart as a chloride anion in the process of substitution and elimination, facilitates the abstraction
Externí odkaz:
https://doaj.org/article/84fc6183e34e4215b49a21c09862343e
Publikováno v:
Molecules, Vol 28, Iss 10, p 4015 (2023)
The aim of this essay is to disclose the similarity of a great variety of reactions that proceed between nucleophiles and π-electrophiles—both aromatic and aliphatic. These reactions proceed via initial reversible addition, followed by a variety o
Externí odkaz:
https://doaj.org/article/df94db8189bd4131a7f4f8c0d5b544e2
Autor:
Mieczysław Mąkosza, Michał Fedoryński
Publikováno v:
Catalysts, Vol 10, Iss 12, p 1436 (2020)
After short historical introduction, interfacial mechanism of phase transfer catalyzed (PTC) reactions of organic anions, induced by aqueous NaOH or KOH in two-phase systems is formulated. Subsequently experimental evidence that supports the interfac
Externí odkaz:
https://doaj.org/article/ff9b819c5a404e25aa67936ee310d82c
Publikováno v:
Molecules, Vol 25, Iss 20, p 4819 (2020)
In this study, we present a complete description of the addition of a model nucleophile to the nitroaromatic ring in positions occupied either by hydrogen (the first step of the SNAr-H reaction) or a leaving group (SNAr-X reaction) using theoretical
Externí odkaz:
https://doaj.org/article/bf3674ceacc8404795a69bd265edb8ea
Autor:
Mieczysław Mąkosza
Publikováno v:
CHIMIA, Vol 48, Iss 11 (1994)
Externí odkaz:
https://doaj.org/article/f806a37161094889a1e7f83273c89abd
Publikováno v:
ARKIVOC, Vol 2006, Iss 6, Pp 59-66 (2006)
Externí odkaz:
https://doaj.org/article/a7ec438ba5a2406d9a47406c17e58b21
Autor:
Mieczyslaw Makosza, Michakl Fedorynski
Publikováno v:
ARKIVOC, Vol 2006, Iss 4, Pp 7-17 (2006)
Externí odkaz:
https://doaj.org/article/1be032a10d7841979731f0a59d3e04e3
Publikováno v:
ARKIVOC, Vol 2000, Iss 6, Pp 905-908 (2000)
Externí odkaz:
https://doaj.org/article/340ed5fa3a914db9827b0dab283715aa
Publikováno v:
Chemistry-A European Journal
We present the first unambiguous evidence of the interfacial mechanism of phase-transfer catalysis (PTC) by direct observation of the formation of carbanions in the interfacial region between the aqueous and the organic phase by using a surface-sensi
Autor:
Mieczyslaw Makosza
Publikováno v:
Organic & Medicinal Chemistry International Journal. 2