Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Aldona Szadowiak"'
Autor:
Wanda Wieczorek, Agnieszka Bodzioch, Piotr Bałczewski, Małgorzata Szyrej, Aldona Szadowiak, Tomasz Białas
Publikováno v:
Journal of Organometallic Chemistry. 692:997-1009
Unknown (−)-dimenthyl and ethyl (−)-menthyl 1-iodoethylphosphonates were synthesized via 1-lithio derivatives in 85–87% yields. Starting (−)-dimenthyl alkylphosphonates (R = Me, Et, i-Pr) were obtained in the Michaelis–Becker reaction (75
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97e554cc336277fd2b449ced7904481f
https://doi.org/10.1016/j.jorganchem.2006.10.069
https://doi.org/10.1016/j.jorganchem.2006.10.069
Publikováno v:
Tetrahedron: Asymmetry. 17:1209-1216
Condensation of methyl methylphosphonochloridate with the dilithium salt of 2-methyllactic acid gave P-racemic methylphosphonates which unexpectedly contained two units of α-hydroxyacid linked via carboxylic ester bond. The racemic mixture was chrom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::580afdfe380c09ea4b066e05543e361b
https://doi.org/10.1016/j.tetasy.2006.04.015
https://doi.org/10.1016/j.tetasy.2006.04.015
Publikováno v:
Heteroatom Chemistry. 16:246-253
Detection of 4-iodo-2,2-dimethyloctanenitrile and 2-iodo-2-methylpropanenitrile proved an operation of two types (I and II) of initiation in the I-ATRA reaction. 4-Iodo-2,2-dimethyloctanenitrile, resulting from the isobutyronitrile radical attack ont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b81012433c037a952494a1b10c61bd4a
https://doi.org/10.1002/hc.20116
https://doi.org/10.1002/hc.20116
Publikováno v:
Talanta. 60:725-732
A new method of analytical determination of some thiolo (PS) and thiono (PS) group containing phosphorus insecticides using a coulometric titration with the anodically generated chlorine and biamperometric end-point detection was described. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3599c581d977e9ff41057835abc0719b
https://doi.org/10.1016/s0039-9140(03)00129-2
https://doi.org/10.1016/s0039-9140(03)00129-2
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 177:1579-1582
The title reaction in the initiation step proceeds via two mechanistic pathways involving attack of the isobutyronitrile radical either on the starting iodide or on the starting alkene or alkyne followed by the reaction of the adduct radical with the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcb7cdd990a8752a079679a00fe17963
https://doi.org/10.1080/10426500212260
https://doi.org/10.1080/10426500212260
Publikováno v:
Heteroatom Chemistry. 14:186-188
Based on competitive reactions and 1H NMR measurements, it was found that (EtO)2P(O)CH2I is at least 2–3 orders of magnitude less reactive than other non-phosphorus iodides of the EWG-CH2I type (EWG = NC, COOMe, 4-Br-C6H4CO). MeSCH2I turned out to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2c487a7680fa0f20d00582dfdc30674
https://doi.org/10.1002/hc.10121
https://doi.org/10.1002/hc.10121
Publikováno v:
ChemInform. 37
Optimization of reaction conditions (alkene, halide, solvent, stoichiometry, manners of the reagents addition, and reaction time) of the I-ATRA reactions involving 1-iodoalkylphosphonates was carried out. GC–MS–CI/EI analyses showed main and side
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8eacfbceb0bd58807696e44b1e2f4b6d
https://doi.org/10.1002/chin.200623179
https://doi.org/10.1002/chin.200623179
Autor:
Aldona Szadowiak, Remigiusz Żurawiński, Marian Mikołajczyk, Józef Drabowicz, Piotr Bałczewski
This chapter describes preparative approaches for the synthesis of alkynylnitrogen and alkynylphosphorus compounds. The first part of this chapter deals with protocols which have been applied for the preparation of alkynylamines and their salts inclu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08fce67b68b1ea39d8d1a01bbfcecb30
https://doi.org/10.1016/b0-08-044655-8/00044-1
https://doi.org/10.1016/b0-08-044655-8/00044-1
Autor:
Piotr Kiełbasiński, Marian Mikołajczyk, Józef Drabowicz, Aldona Szadowiak, Piotr Bałczewski, Remigiusz Żurawiński
Publikováno v:
Scopus-Elsevier
The chapter describes the methods of synthesis of acyclic and cyclic bisphosphino alkenes published during the years 1995–2003. It also covers the methods of synthesis and transformations of the bisphosphino alkenes containing various combinations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cb44bd885b243136afbd354eb8852d5
https://doi.org/10.1016/b0-08-044655-8/00088-x
https://doi.org/10.1016/b0-08-044655-8/00088-x
Publikováno v:
ChemInform. 35
A new synthesis of the title compounds via acylation of α-lithio-α-phosphorylalkyl sulfides is described. Two additional approaches to these compounds, although less efficient, involve: (a) sulfenylation of O-silylated dialkyl β-ketophosphonates a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47dc8c3f76e0094767fa8c3cb53ecc81
https://doi.org/10.1002/chin.200428180
https://doi.org/10.1002/chin.200428180