Results 71 to 80 of about 468,328 (285)

The detection of aromatic amines, possible mammary carcinogens, in human milk [PDF]

, 2001
The etiology of breast cancer remains unknown. Increased life-time exposure to estrogens, for example, through early menarche and late menopause, is an important risk factor in breast cancer, but is unable to account for the majority of post-menopausal ...
Debruin, Lillian S.
core   +1 more source

Mechanochemical Catalytic Transfer Hydrogenation of Aromatic Nitro Derivatives

Molecules, 2018
Mechanochemical ball milling catalytic transfer hydrogenation (CTH) of aromatic nitro compounds using readily available and cheap ammonium formate as the hydrogen source is demonstrated as a simple, facile and clean approach for the synthesis of ...
Tomislav Portada, Davor Margetić, Vjekoslav Štrukil   +2 more
doaj   +1 more source

Reductive N-alkylation of aromatic amines and nitro compounds with nitriles using polymethylhydrosiloxane

, 2007
The potential utility of polymethylhydrosiloxane (PMHS) as a reducing agent for reductive N-alkylation of aromatic amines and nitro compounds using nitriles as an alkylating agent and Pd(OH)2/C as a catalyst is described.
Vijeender, K., Phani Madhavi, P., Raji Reddy, Ch., Bibhuti Bhusan, P., Chandrasekhar, S.   +4 more
core   +1 more source

Association between NAT2, CYP1A1, and CYP1A2 genotypes, heterocyclic aromatic amines, and prostate cancer risk: a case control study in Japan

Environmental Health and Preventive Medicine, 2017
Background Heterocyclic aromatic amines (HAAs) may confer prostate cancer risk; however, the evidence is inconclusive and the activity of HAA-metabolizing enzymes is modulated by gene variants.
Masahide Koda, Motoki Iwasaki, Yuko Yamano, Xi Lu, Takahiko Katoh   +4 more
doaj   +1 more source

Process-induced toxicants in food: an overview on structures, formation pathways, sensory properties, safety and health implications

Food Production, Processing and Nutrition
With the rapid advances in ready-to-eat food products and the progress of food processing industries, concerns about food security and investigating food safety as well as sensory quality have intensified.
Adel Mirza Alizadeh, Mansoureh Mohammadi, Fataneh Hashempour-baltork, Hedayat Hosseini, Fereidoon Shahidi   +4 more
doaj   +1 more source

Red Meat Heating Processes, Toxic Compounds Production and Nutritional Parameters Changes: What about Risk–Benefit?

Foods
The heating process is a crucial step that can lead to the formation of several harmful chemical compounds in red meat such as heterocyclic aromatic amines, N-Nitrosamines, polycyclic aromatic hydrocarbons and acrylamide. Meat has high nutritional value,
Marco Iammarino, Rosaria Marino, Valeria Nardelli, Mariateresa Ingegno, Marzia Albenzio   +4 more
doaj   +1 more source

Interfacial Mn‐Carbon Nitride Synergy Enables Selective Photocatalytic C─H Chlorination via Single‐Atom Catalysis

Angewandte Chemie International Edition, EarlyView.
A manganese single‐atom photocatalyst on functionalised carbon nitride enables selective visible‐light‐driven C(sp2)─H chlorination. DFT‐supported mechanistic studies indicate that photoinduced charge separation activates NCS, while isolated Mn sites stabilize Mn─Cl intermediates at the catalyst interface.
Jaro Vanderghinste, Prakash Kumar Sahoo, Xinbang Wu, Thanh Huyen Vuong, Anna Rokicińska, Susanna Monti, Giovanni Barcaro, Alina Skorynina, Aleksander Jaworski, Vivien Michaelis, Jabor Rabeah, Julia Bornhorst, Laura Simonelli, Piotr Kuśtrowski, Adam Slabon, Paul J. Dyson, Shoubhik Das   +16 more
wiley   +1 more source

General and selective ruthenium-catalyzed hydrogenation of primary amides to primary amines under mild conditions

Nature Communications
The catalytic hydrogenation of amides continues to be one of the most difficult reductive transformations in organic synthesis. Despite significant efforts in past decades, there is no general protocol reported allowing the synthesis of various primary ...
Chakreshwara Kuloor, Vishakha Goyal, Zhuang Ma, Fairoosa Poovan, Dilver Peña Fuentes, Wolfgang Baumann, Jun Zhao, Radek Zbořil, Mathias Beller, Rajenahally V. Jagadeesh   +9 more
doaj   +1 more source

Blue Chitin columns for the extraction of heterocyclic amines from urine samples

, 2004
During normal cooking of meat, a class of mutagenic/carcinogenic compounds called heterocyclic amines is formed. Heterocyclic amines are rapidly absorbed and metabolised in the human body, and for estimation of the intake of heterocyclic amines, it is ...
Bång, Joakim,, Skog, Kerstin,, Frandsen, H, Lund University.   +3 more
core   +2 more sources

Efficient synthesis of novel N-(2-fluoro-4-nitrophenyl) heteroaryl amines via NaH/DMF-promoted nucleophilic aromatic substitution and assessment of their biological activities

Discover Chemistry
A simple and efficient method has been established for synthesizing N-(2-fluoro-4-nitrophenyl)pyridin-2-amine and N-(2-fluoro-4-nitrophenyl)-5-phenyl-1,3-thiazol-2-amine via a nucleophilic aromatic substitution (SNAr) pathway.
Nayan Adsul, Surekha N. Jadhav, Rahul M. Mane, Kishor V. Gaikwad   +3 more
doaj   +1 more source