6596-81-2Relevant academic research and scientific papers
METHOD FOR ALKYLATING A MOLECULE OR AN ION
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Page/Page column 34, (2019/04/16)
The present invention relates to a method for alkylating a molecule or an ion, wherein the molecule or the ion is alkylated by reacting it with an alkylating agent, wherein the alkylating agent is a compound according to formula (1) or a compound according to formula (4). In the formulae (1) and (4), R1 is a substituted C1-20-alkyl group, an unsubstituted C1-20-alkyl group, a substituted C3-20-cycloalkyl group or an unsubstituted C3-20-cycloaalkyl group, R2 is a substituted or unsubstituted C1-20 hydrocarbon residue or a hydrogen atom, R3 is a substituted or unsubstituted C1-20 hydrocarbon residue or a hydrogen atom, R4 and R5 are linked with each other to form an aromatic group or are independently from each other selected from the group consisting of a hydrogen atom, substituted and unsubstituted C1-20 hydrocarbon residues and electron withdrawing groups, R10 to R13 are independently from each other selected from the group consisting of a hydrogen atom, a substituted C1-20-alkyl group, an unsubstituted C1-20-alkyl group, a substituted C3-20-cycloalkyl group and an unsubstituted C3-20-cycloaalkyl group and A- is an anion.
THE CHELETROPIC FRAGMENTATION OF HYPERVALENT THREE-MEMBERED THIAHETEROCYCLIC INTERMEDIATES
Zoller, Uri
, p. 7413 - 7426 (2007/10/02)
Lithio-imidazolium salts 10, generated in-situ from N'N-dimethylimidazolium salts 9, readily undergo sulfonylation with sulfur dioxide, sulfines, N-sulfinylamines, and thiirane.The resulting zwitterionic species 4 fragment thermally to yield the corresponding imidazolium thione 5 with the hypervalent three-membered thiaheterocyclic intermediates 3 connecting 4 and 5 on the reaction surface.The non-linear cheletropic fragmentation of these relatively stable hypervalent sulfuranes appears to be general for this class of compounds (3 or 4), and the experimental results are in accord with theoretical considerations.
PHOTOCHEMISTRY OF AZOLES, PART VII. PHOTOSOLVOLYSIS OF ALKYLMERCAPTOAZOLES. AN APPLICATION TO SOME ACYCLIC MONOTERPENE DERIVATIVES
Iwasaki, Shigeo
, p. 125 - 138 (2007/10/02)
Salts derived from 2-alkylmercapto-1-methylimidazoles 1b-e and 3-alkylmercapto-4-methyl-1,2,4-triazoles 2b-d have been found to undergo photochemical heterolytic fission of the S-alkyl bond in aqueous or methanolic solution to give solvolysis-type products.
