Results 1 to 10 of about 103,651 (297)

Revitalizing reformatsky reagent for catalyst-free direct alkylation with unactivated alkyl halides

Nature Communications
Reformatsky reagents are commonly employed with activated electrophiles, such as aldehydes, ketones, or activated alkyl halides. However, their limited nucleophilicity remains a considerable challenge for direct reactions with unactivated alkyl halides ...
Lingpu Meng, Zimeng Li, Tian Zhang, Yi Xu, Yangxiao Li, Botao Wu, Qilong Shen   +6 more
doaj   +1 more source

N-(2-Fluoro-2-propen-1-yl)-5-(trifluoromethyl)-2-pyridinecarboxamide

Molbank
Herein, the synthesis and crystallization of the unreported compound N-(2-fluoro-2-propen-1-yl)-5-(trifluoromethyl)-2-pyridinecarboxamide is achieved via amide coupling with a (2-fluoroallyl)ammonium salt.
Taylor Semeniuk, Jean-Denys Hamel
doaj   +1 more source

Fluorine Hyperfine Interaction in Aromatic Anion Radicals [PDF]

, 1969
J.P. Colpa, P. H. H. Fischer
openalex   +1 more source

3,4-Bis(3-tetrazolylfuroxan-4-yl)furoxan: A Linear C–C Bonded Pentaheterocyclic Energetic Material with High Heat of Formation and Superior Performance

ACS Omega, 2020
Lianjie Zhai, Fuqiang Bi, Junlin Zhang, Jiarong Zhang, Xiangzhi Li, Bozhou Wang, Sanping Chen   +6 more
doaj   +1 more source

BrCF2CN for photocatalytic cyanodifluoromethylation

Nature Communications
Considering the unique electronic properties of the CF2 and the CN groups, the CF2CN group has significant potential in drug and agrochemical development, as well as material sciences. However, incorporating a CF2CN group remains a considerable challenge.
Xin-Jun Yang, Jin-Hong Lin, Ji-Chang Xiao   +2 more
doaj   +1 more source

Post-oxidation of all-organic electrocatalysts to promote O−O coupling in water oxidation

Nature Communications
Covalently bonded metal-free electrocatalysts exhibit significant potential for sustainable energy technologies, yet their performances remain unsatisfactory compared with metal-based catalysts.
Chun-Ting He, Li-Hong Yu, Haiming Liu, Qing Wang, Zi-Ming Ye, Jia Zhang, Li-Dong Wang, Mei-Qian He, Xue-Feng Zhang, Hong-Gang Du, Zi-Wei Lu, Jian Yang, Hai-Hua Huang, Xiao-Ming Chen   +13 more
doaj   +1 more source

Transition state structure detection with machine learningś

npj Computational Materials
Transition structure calculations via quantum chemistry methods have become a staple in modern chemical reaction research. Yet, success rates in optimizing transition structures rely heavily on rational initial guesses and expert supervision.
Yitao Si, Yiding Ma, Tao Yu, Yifan Wu, Yingzhe Liu, Weipeng Lai, Zhixiang Zhang, Jinwen Shi, Liejin Guo, Oleg V. Prezhdo, Maochang Liu   +10 more
doaj   +1 more source

Fluorine F 18-Al-NOTA-MATBBN [PDF]

, 2020
National Cancer Institute
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Copper difluorocarbene-involved catalytic gem-difluoropropargylation

Nature Communications
The use of metal for catalytic difluorocarbene transfer reactions has long been hindered by the lack of understanding of metal difluorocarbene chemistry, despite the potential implications for medicinal chemistry and advanced materials science.
Xin Zeng, Shi-Ping Sun, Hai-Yang Zhao, Xingang Zhang   +3 more
doaj   +1 more source

¹⁸F‐Fluorine‐18‐l‐dihydroxyphenylalanine (¹⁸F‐DOPA) positive isolated peritoneal carcinomatosis from a MENII‐related medullary thyroid carcinoma. About an atypical metastatic site and utility of ¹⁸F‐FDOPA [PDF]

, 2014
Alaa Hosni Hassan Aziz, Lawrence Dierickx, F. Courbon, David Taïeb, Slimane Zerdoud   +4 more
openalex   +1 more source