Results 1 to 10 of about 89,156 (285)

Ketone α-alkylation at the more-hindered site

open access: yesNature Communications, 2023
Control of the regioselectivity of α-alkylation of carbonyl compounds is a longstanding topic of research in organic chemistry. By using stoichiometric bulky strong bases and carefully adjusting the reaction conditions, selective alkylation of ...
Ming-Ming Li   +6 more
doaj   +1 more source

Versatile cell-based assay for measuring DNA alkylation damage and its repair

open access: yesScientific Reports, 2021
DNA alkylation damage induced by environmental carcinogens, chemotherapy drugs, or endogenous metabolites plays a central role in mutagenesis, carcinogenesis, and cancer therapy.
Yong Li   +5 more
doaj   +1 more source

Selective nucleophilic α-C alkylation of phenols with alcohols via Ti=Cα intermediate on anatase TiO2 surface

open access: yesNature Communications, 2023
C−C bond forming reaction by alkylation of aryl rings is a main pillar of chemistry in the production of broad portfolios of chemical products. The dominant mechanism proceeds via electrophilic substitution of secondary and tertiary carbocations over ...
Xinze Du   +3 more
doaj   +1 more source

Alkylation of Dihydrofullerenes [PDF]

open access: yesThe Journal of Organic Chemistry, 2002
The fulleride dianions C(60)(2-) and C(70)(2-) were generated by deprotonation of the corresponding hydrogenated fullerenes, 1,2-C(60)H(2) and 1,2-C(70)H(2). These anions were prepared in the presence of a variety of alkylating agents, and mono- or dialkylated products were obtained. Alkylation was not successful with sulfonate ester alkylating agents.
Mark S. Meier   +4 more
openaire   +3 more sources

Some applications of deep eutectic solvents in alkylation of heterocyclic compounds: A review of the past 10 years

open access: yesHeterocyclic Communications, 2021
This mini-review encapsulates the latest findings (past 10 years) in the field of the deep eutectic solvents (DESs) application in the alkylation/arylation of different heterocyclic compounds.
Molnar Maja   +4 more
doaj   +1 more source

Copper(I)-catalyzed asymmetric alkylation of α-imino-esters

open access: yesNature Communications, 2023
Asymmetric alkylation of enolates is one of the most direct and important reactions to prepare α-chiral carbonyl compounds. Except for the classical methods that rely on the use of chiral auxiliaries, asymmetric catalysis emerged as a powerful tool ...
Zong-Ci Liu   +3 more
doaj   +1 more source

Progress of decreasing toxic polycyclic aromatic hydrocarbons content in coal-tar pitch by alkylation method

open access: yesMeitan kexue jishu, 2023
Coal-tar pitch (CTP) is a substance produced by ambient and/or vacuum distillation of high-temperature coal tar, although CTP has a large yield in China, however its wide application is limited due to its high toxicity.
ZHANG Wenshuo   +5 more
doaj   +1 more source

Direct C2–H alkylation of indoles driven by the photochemical activity of halogen-bonded complexes

open access: yesBeilstein Journal of Organic Chemistry, 2023
A light-driven metal-free protocol for the synthesis of sulfone-containing indoles under mild conditions is reported. Specifically, the process is driven by the photochemical activity of halogen-bonded complexes formed upon complexation of a sacrificial ...
Martina Mamone   +4 more
doaj   +1 more source

ChemInform Abstract: Alkyl—Alkyl Suzuki Cross‐Coupling of Unactivated Secondary Alkyl Chlorides. [PDF]

open access: yesChemInform, 2010
AbstractThe first alkyl—alkyl Suzuki reaction of unactivated secondary chlorides is applicable to both cyclic and acyclic secondary alkyl halides tolerating a variety of functional groups.
Lu, Zhe, Fu, Gregory C.
openaire   +8 more sources

ALKYLATION OF BENZENE WITH LONG CHAIN OLEFINS OVER SOLID-ACID CATALYST

open access: yesJournal of Engineering, 2009
This investigation is concerned with the linear alkylbenzene production reaction by the alkylation of benzene with long chain olefins C10-C13 over various prepared solid acid catalysts.
Abdul Halim A. K. Mohammed   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy