Results 11 to 20 of about 95,231 (345)

Studies on Phenolic Lactones

Bulletin of the Agricultural Chemical Society of Japan, 1959
α-Exo-unsaturated-γ-butyrolactones were prepared. Reduction of α-benzylidene succinic acid esters with lithium aluminum hydride afford 2-benzylidene-1,4-butanediols. Manganese dioxide oxidation of glycols followed by silver oxide oxidation and lactonization afford α-benzylidene-γ-butyrolactones. Thus α-benzylidene-, α-anisylidene-, α-veratrylidene-, α-(
Kyôhei Yamashita, Masanao Matsui
openalex   +9 more sources

Structure of Mokko Lactone and Dehydrocostus Lactone

Chemical and Pharmaceutical Bulletin, 1964
Hiroshi Hikino, Kanji Meguro, Genjiro Kusano, Tsunematsu Takemoto   +3 more
openalex   +5 more sources

Microbial Reduction of Ketopantoyl Lactone to Pantoyl Lactone [PDF]

Applied Microbiology, 1974
The results of a microbial survey study have shown that the ability to reduce added ketopantoic acid (or ketopantoyl lactone) and accumulate pantoic acid (or pantoyl lactone) in the growth medium is widespread among diverse fungi. The reductions generally proceeded with less than full stereoselectivity.
Dorothy G. Bradley, Kerry M. McDonald, Raymond P. Lanzilotta   +2 more
openaire   +2 more sources

A C-to-B Atom Swap on Coumarins and Dibenzolactones. [PDF]

Angew Chem Int Ed Engl
Cyclic boronic hemiesters, boron isosteres of lactones, display unique and valuable chemical properties. Herein, we report a novel method for their synthesis via nickel‐catalyzed decarbonylative borylation, enabled by electron‐rich phosphine ligands to achieve a formal “C‐to‐B” atom swap.
You T, Luu QH, Li J.
europepmc   +3 more sources

Antimicrobial Activity of Lactones

Antibiotics, 2022
The development of bacterial resistance to antibiotics and the consequent lack of effective therapy is one of the biggest problems in modern medicine. A consequence of these processes is an urgent need to continuously design and develop novel antimicrobial agents. Among the compounds showing antimicrobial potential, lactones are a group to explore. For
Marcelina Mazur, Dorota Masłowiec
openaire   +3 more sources

Syntheses of Unsaturated Lactones

Agricultural and Biological Chemistry, 1969
6-Pentyl-α-pyrone, 6-propyl-α-pyrone and 4-decenoic acid-δ-lactone were prepared, and the nature of their flavors was investigated. Unsaturated lactones having the best flavorous nature as a butter or butter cake flavor among the lactones having double bond at various site, were 2-ene-δ-lactones which have a double bond at the α-position of the lactone
Akio NOBUHARA
openalex   +7 more sources

Contribution of microscopy for understanding the mechanism of action against trypanosomatids [PDF]

, 2018
Transmission electron microscopy (TEM) has proved to be a useful tool to study the ultrastructural alterations and the target organelles of new antitrypanosomatid drugs.
A Martinez-Palomo, A Montalvetti, A Rassi, AB Penissi, AE Eakin, AH Kolien, AJ Solari, AM Sánchez, Ana Yecê das Neves Pinto, C Brack, CF Silva Da, D Gonzalez-Pacanowska, DA Campbell, DA Johnston, DJ Hammond, DV Andrade, E Bontempi, E Lozano, E Lozano, E Lozano, EO Ogbadoiyi, ES Garcia, ES Lozano, F Dos Reis, FR Opperdoes, FR Opperdoes, FR Opperdoes, FS Laranja, H Meyer, H Meyer, J Aldunate, J Lukes, J McKerrow, J Mottram, JA Urbina, JA Urbina, JA Urbina, JA Urbina, JC Engel, JC Linder, JCP Dias, JCP Dias, JD Bergstrom, JD Maya, JF Turrens, JJ Marr, JL Avila, JL Avila, Juliano de Toledo, K Lazardi, K Miranda, K Miranda, KH Lee, L Simpson, LV Muschietti, M Meirelles, M Nieto, MC Elias, MCQB Elias, MR Ariyanayagam, MR Ariyanayagam, NM Sayed El, O Campetella, OS Giordano, OS Giordano, P Barrera, P Webster, PF Pimenta, R Docampo, S Sepúlveda-Boza, SD Brengio, SR Wilkinson, T Souto-Padron, T Souto-Padron, T Souto-Padron, T Souto-Padron, TA Shapiro, TS Tiuman, V Jimenez-Ortiz, V Sülsen, VP Sülsen, VP Sülsen, VV Costantino, W Souza De, W Souza De, W Souza De, W Souza De, W Souza De, W Souza De, Wanderley de Souza, WE Gutteridge   +90 more
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Lactones in foods

C R C Critical Reviews in Food Science and Nutrition, 1976
Lactones represent another important class of flavor compounds that have been found in a wide variety of foods although traditionally they have been mainly associated with dairy products. This review summarizes their occurrences in foods along with their formation pathways, sensory properties, and isolation, identification, and synthesis techniques ...
Joseph A. Maga, Ira Katz
openaire   +3 more sources

Synthesis and Cytotoxic Activity of Some 3-Benzyl-5-Arylidenefuran-2(5H)-ones

Molecules, 2007
3-Benzyl-furan-2(5H)-one (2a) and 3-(4-bromobenzyl)-furan-2(5H)-one (2b) were treated with TBDMSOTf and converted into the corresponding tert-butyldimethyl-silylfuran ethers.
Manoel Odorico Moraes, Cláudia Pessoa, Letícia Veras Costa-Lotuf, Daniel Pereira Bezerra, Marcelo Eça Rocha, Célia Regina Alvares Maltha, Luiz Cláudio Barbosa, Róbson Ricardo Teixeira   +7 more
doaj   +1 more source

Synthesis of spiroacetals using functionalised titanium carbenoids [PDF]

, 2008
Alkylidenation of lactones with functionalised titanium carbenoid reagents (Schrock carbenes) followed by acid-induced cyclisation of the resulting enol ethers constitutes a new method for the preparation of [4.4], [4.5] and [5.5] spiroacetals (1,6 ...
Aho, Alcaide, Boxer, Brimble, Calver A. Main, Canova, Chang, Cuzzupe, Denmark, Doubsky, D’Annibale, El-Badri, Enders, Evans, Furrow, Godoy, Hartley, Hayes, Horikawa, Inoue, Ireland, Keaton, Krishna, Kumar, Lowe, Lu, Macleod, McKiernan, Mead, Morimoto, Mortimore, Nakashima, Ousset, Paquette, Paterson, Perron, Petasis, Phillips, Richard C. Hartley, Sakaguchi, Shahzad S. Rahman, Takai, Takeda, Tebbe, Tietze, Tsang, Van Orden, Velluci, Vuagnoux-D’Augustin, Wang, Yan, Yang, Zhou   +52 more
core   +1 more source