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Recent Advances in the Catalytic Functionalization of “Electrophilic” Indoles

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Chinese Journal of Chemistry 2020年第3期38卷 287-294页

作者： Alessandro Cerveri Marco Bandini dipartimento di chimica"giacomo ciamician"-alma moter studiorum universita di bologna Via Selmi 240126 BolognaItaly Consorzio C.I.N.M.P.I.S.Via Selmi 2 40126 BolognaItaly

When "dark"is bright:the scarcely explored electrophilic profile of the indolyl core(dark side)continues to inspire developments in organic synthesis by means of new catalytic *** advancements in the field enabled mol... 详细信息

关键词： chemistry. Catalytic heterocyclic

Nickel Catalyzed Functionalization of Allenes

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Chinese Journal of Chemistry 2019年第5期37卷 431-441页

作者： Yang Liu Marco Bandini dipartimento di chimica "G. ciamician" Alma Mater Studiorum - Universita di Bologna via Selmi 2 4016 Bologna Italy

What is the most favorite and original chemistry developed in your research group?The stereoselective gold catalyzed manipulation of in doles with *** do you get into this specific field? Could you please share some experiences with our readers?Step-by-step. Specifically, by merging our background on catalytic alkylation of arenes with an emerging area (at that time) such as homogeneous gold *** is the most important personality for a researcher?? Leadership, attitude in motivating early-stage scientists and capability of combining scientific inputs of different heritage for a single and ultimate goal.

关键词： favorite chemistry goal

Incorporation of Molecular Nanoparticles Inside Proteins:The Trojan Horse Approach in Theranostics

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Accounts of Materials Research 2021年第8期2卷 594-605页

作者： Matteo di Giosia Francesco Zerbetto Matteo Calvaresi dipartimento di chimica“G.ciamician” Alma Mater Studiorum-Universitàdi Bologna40126 BolognaItaly

CONSPECTUS:Molecular nanoparticles,MNPs,characterized by well-defined chemical formulas,structures,and sizes can interact with a variety of ***,carboranes,and gold nanoclusters well represent the diversity of MNPs properties available in *** can have diameters smaller than 1.5 nm,be hydrophilic or hydrophobic,and can use a paraphernalia of means to establish local and global interactions with the amino acidic residues of ***,endowed as they are with an assortment of pockets,crevices,and gaps are natural supramolecular hosts to incorporate/hide/transport MNPs directly in water with a facile and“green”*** Account identifies and discusses the rules that govern the interactions and binding between MNPs and *** are composed solely by carbon atoms arranged to form hollow *** interactions occur between aliphatic residues and the fullerene *** amino acids most effectively interacting with fullerenes are aromatic residues that establishπ−πstacking interactions with the *** and charged residues produce also cation−π,anion−π,and surfactant-like interactions with the *** are composed of boron,carbon,and hydrogen atoms,also arranged to form *** are hydrophobic with unusual properties originating from the presence of boron ***-like hydrogens bound to the boron atoms govern carborane *** negatively charged hydrogens do not participate in classic hydrogen bonding with water and promote hydrophobic interactions with *** the contrary,the electronegativity of these hydrogens drives the formation of unconventional dihydrogen bonds with the acidic hydrogen atoms of positively charged amino *** also establish C−H…πand B−H…πinteractions with aromatic *** nanoclusters,AuNCs,are synthesizable with atomically precise *** acid residues with sulfur atoms or with nitrogen-containing heterocycles are th

关键词： residues boron Molecular

Evaluation of the potential exposure of butterflies to genetically modified maize pollen in protected areas in Italy

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Insect Science 2018年第4期25卷 549-561页

作者： Salvatore Arpaia Ferdinando Baldacchino Sara Bosi Giovanni Burgio Simona Errico Rosaria Alessandra Magarelli Antonio Masetti Salvatore Santorsola ENEA-Italian National Agency for New Technologies Energy and Sustainable Economic Development Research Centre Trisaia Rotondella (MT) Italy dipartimento di Scienze Agrarie Alma Mater Studiorum Universita di Bologna Bologna Italy

Environmental impacts of genetically modified crops are mandatorily assessed during their premarket phase. One of the areas of concern is the possible impact on nontar- get organisms. Crops expressing Cry toxins might affect Lepidoptera larvae living outside cultivated fields, through pollen deposition on wild plants, which constitute their food source. While pollen toxicity varies among different events, possible exposure ofnontarget species depends on the agro-environmental conditions. This study was conducted in two protected areas in Italy, characterized by different climatic conditions, where many Lepi- doptera species thrive in proximity to maize cultivations. To estimate the possible exposure in absence of the actual stressor （e.g., Cryl-expressing maize plants）, we conducted a two-year field survey of butterflies and weeds. Indicator species were selected--Aglais （Inachis） io in the Northern site and Vanessa cardui in the Southern site--and their phe- nology was investigated. Pollen dispersal from maize fields was measured by collection in Petri dishes. Duration and frequency of exposure was defined by the overlap between pollen emission and presence of larvae on host plants. different risk scenarios are expected in the two regions： highest exposure is foreseen forA. io in the Northern site, while minimal exposure is estimated for V. cardui in the Southern site. In the latter case, locally grown maize cultivars flower in mid-summer in coincidence with an aestivation period for several butterfly species due to hot and dry conditions. Moreover, host plants of V. cardui are at the end of their life cycle thus limiting food availability.

关键词： environmental risk assessment exposure assessment genetically modified plants Lepidoptera nontarget organisms receiving environment

Tandem Functionalization-Carboxylation Reactions ofπ-Systems with CO_(2)

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Chinese Journal of Chemistry 2021年第11期39卷 3116-3116,3117-3126页

作者： Giulio Bertuzzi Alessandro Cerveri Lorenzo Lombardi Marco Bandini dipartimento di chimica“giacomo ciamician” Alma Mater StudiorumUniversitàdi Bolognavia Selmi 240126BolognaItaly Consorzio CINMPIS via Selmi 24016BolognaItaly

The tandem catalytic functionalization/carboxylation of double as well as triple carbon-carbon bonds with CO_(2) represent an emerging research area in synthetic organic *** particular,the combination of mild reaction conditions,stoichiometric acceptor/donorless conditions(visible light photoredox catalysis)and chiral catalysts contributed to a rapid development of this intriguing research area capable of creating chemical diversity/complexity from readily available unsaturated hydrocarbons and CO2 as a C1-buinding *** most recent developments in the field have been collected in the present review article and organized,based on the different sets ofπ-systems/intermediates/reactive partners employed(i.e.,nickelalactones,organo-halides)as well as synthetic strategies(i.e.,visible-light photo redox catalysis).

关键词： Catalysis Carboxylation CO_(2) Tandem reaction π-Systems

A triplet of the only pulsation mode detected in the DAV star G132–12

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Research in Astronomy and Astrophysics 2021年第6期21卷 276-280页

作者： Wen-Chao Su Jian-Ning Fu Jian-Xing Chen Lester Fox-Machado Shi-Jie Zhao Carmen Ayala-Loera Jiang-Tao Wang Yang Pan Department of Astronomy Beijing Normal UniversityBeijing 100012China dipartimento di Fisica e Astronomia Alma Mater Studiorum Universita’di Bolognavia Piero Gobetti 93/21-40129 BolognaItaly INAF-Osservatorio di Astrofisica e Scienze dello Spazio di bologna Via Piero Gobetti 93/31-40129 BolognaItaly Instituto de Astronomia Universidad Nacional Autonoma de MexicoApartado Postal 87722800 EnsenadaBaja CaliforniaMexico Institute of Astronomy&Astrophysics Academia SinicaTaipeiChina

Hydrogen atmosphere pulsating white dwarfs,also known as DAV stars,are the most abundant type of pulsating white ***-temperature DAV stars in general exhibit a small number of pulsation modes and stable frequencies.G132-12 is one of the pulsating hydrogen atmosphere white dwarf stars which lies close to the blue edge of the instability *** researches reported that G132-12 might have only one pulsation mode with the period of 212.69 *** study the pulsation properties of G132-12 in detail,we carried out a bi-site observation campaign in October *** series photometric data were collected during around 154 h in total.A Fourier analysis reveals three frequencies which are identified as the triplet of an l=1 g-mode pulsation with the period of 212.499 *** rotational period is derived as Prot=35.0±6.7 h and the inclination of the rotational axis to the line of sight is 70°.G132-12 could be an ideal target for measuring the cooling scale of this white dwarf star with only one excited pulsation mode detected.

关键词： white dwarfs oscillations photometric

致命性家族性失眠症的症状前诊断:连续的神经生理学和18FDG-PET研究

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世界核心医学期刊文摘(神经病学分册) 2006年第8期 40-40页

作者： Cortelli P. Perani D. Montagna P. 赵天智 alma Mater studiorum- universita' di bologna Dipartimento di Scienze Neurologiche Via Ugo Foscolo 7 40123 Bologna Italy Dr.

Knowing how and when the degenerative process starts is important in neurodegenerative diseases. We have addressed this issue in fatal familial insomnia (FFI) measuring the cerebral metabolic rate of glucose (CMRglc) with 2- [18F]fluoro- 2- deoxy- D- glucose PET in parallel with detailed clinical, neuropsychological examinations and polysomnography with EEG spectral analyses. Nine asymptomatic carriers of the D178N mutation, 10 non- carriers belonging to the same family, and 19 age- matched controls were studied over several years. The CMRglc as well as clinical and electrophysiological examinations were normal in all cases at the beginning of the study. Four of the mutation carriers developed typical FFI during the study but CMRglc and the clinical and electrophysiological examinations remained normal 63, 56, 32 and 21 months, respectively before disease onset. The carrier whose tests were normal 32 months before disease onset was re- examined 13 months before the onset. At that time, selective hypometabolism was detected in the thalamus while spectral- EEG analysis disclosed an impaired thalamic sleep spindle formation. Following clinical disease onset, CRMglc was reduced in the thalamus in all 3 patients examined. Our data indicate that the neurodegenerative process associated with FFI begins in the thalamus between 13 and 21 months before the clinical presentation of the disease.

关键词：神经生理学失眠症 FDG-PET 家族性