Results 81 to 90 of about 45,496 (243)
New 1-[(1,3-thiazol-2-ylamino)methyl]-2-naphthols were obtained by condensation of 2-aminothiazole, aromatic aldehydes, and 2-naphthol in the presence of (+)-camphor-10-sulfonic acid ((+)-CSA) as an effective catalyst under ultrasound-promoted solvent ...
Emel Pelit, Zuhal Turgut
doaj +1 more source
Preparation of 5-Bromo-2-naphthol: The Use of a Sulfonic Acid as a Protecting and Activating Group
The preparation of 5-bromo-2-naphthol (4) in three steps from 5-amino-2-naphthol (1) is described. A sulfonic acid group is introduced at the 1-position as an activating and protecting group for the Sandmeyer reaction.
Christopher Abelt +2 more
doaj +1 more source
A micromethod for the determination of arginine [PDF]
Micromethods for the determination of arginine based on the use of the Sakaguchi reagent have been described (14). This reagent gives a strong color with glycocyamine, arginine, and other monosubstituted guanidine derivatives.
Dubnoff, Jacob W.
core
Mapping the murine TMJ glenoid fossa over development, homeostasis and in response to disease
The fibrocartilage of the murine glenoid fossa and condyle of the temporomandibular joint are shown to form at distinct times with distinct molecular identities. Changes in the condyle during disease lead to remodelling of the fossa to maintain joint alignment.
Ticha Tuwatnawanit +4 more
wiley +1 more source
Imidazolium salts are shown to catalyze the rapid room temperature reaction of indoles or naphthol with aldehydes to provide bis(indolyl)methanes or bis(naphthol)methane in excellent yields and the reaction proceeds optimally in dichloromethane with no ...
Xu Wang, Courtney C Aldrich
doaj +1 more source
Pilot-scale steam explosion pretreatment with 2-naphthol to overcome high softwood recalcitrance
Background Steam explosion pretreatment has been examined in many studies for enhancing the enzymatic digestibility of lignocellulosic biomass and is currently the most common pretreatment method in commercial biorefineries.
Thomas Pielhop +3 more
doaj +1 more source
Identification and quantification of carbamate pesticides in dried lime tree flowers by means of excitation-emission molecular fluorescence and parallel factor analysis when quenching effect exists [PDF]
A non-separative, fast and inexpensive spectrofluorimetric method based on the second order calibration of excitation-emission fluorescence matrices (EEMs) was proposed for the determination of carbaryl, carbendazim and 1-naphthol in dried lime tree ...
Ortiz Fernández, Mª Cruz +2 more
core +1 more source
Advances in organic UV filters for sunscreens over the past decade
Highlighted organic UV filter frameworks that have been described for sunscreens over the past decade divided into three groups: derivatives of or inspired by approved organic UV filters, natural product‐based compounds, and miscellaneous. Abstract Ultraviolet (UV) radiation is a major environmental factor in photoaging, erythema, and skin cancer ...
Gabriela Zanella Marcon +4 more
wiley +1 more source
HY zeolite catalyzes the ortho–methylation of 1–naphthol
The selective ortho–alkylation of 1–naphthol with methanol is carried out over various commercially available acid solid catalysts under relatively mild reaction conditions (
Matea Bačić +4 more
doaj +1 more source

