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  1. Article ; Online: Mimicking Ozonolysis via Mechanochemistry: Internal Alkynes to 1,2-Diketones using H5IO6.

    Nayek, Pravat / Mal, Prasenjit

    Chemistry (Weinheim an der Bergstrasse, Germany)

    2024  , Page(s) e202401027

    Abstract: Utilizing periodic acid as an environmentally benign oxidizing agent, this study introduces a novel mechanochemical method that mimics ozonolysis to convert internal alkynes into 1,2-diketones, showcasing effective emulation of ozone's reactivity. ... ...

    Abstract Utilizing periodic acid as an environmentally benign oxidizing agent, this study introduces a novel mechanochemical method that mimics ozonolysis to convert internal alkynes into 1,2-diketones, showcasing effective emulation of ozone's reactivity. Notably, this oxidation occurs at room temperature in aerobic conditions, eliminating the need for toxic transition metals, hazardous oxidants, or expensive solvents. Through control experiments validating the mechanism, substantial evidence supports a concerted reaction pathway. This progress marks a significant stride toward cleaner and more efficient chemical synthesis, mitigating the environmental impact of conventional processes. Assessing the green chemistry metrics in both solvent-free and previously reported solvent-based methods, our eco-friendly protocol demonstrates an E-factor of 7.40, a 51.7% atom economy, a 45.5% atom efficiency, 100% carbon efficiency, and 11.9% reaction mass efficiency when solvents are not used.
    Language English
    Publishing date 2024-04-18
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1478547-X
    ISSN 1521-3765 ; 0947-6539
    ISSN (online) 1521-3765
    ISSN 0947-6539
    DOI 10.1002/chem.202401027
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: First 72-hours after birth: Newborn feeding practices and neonatal mortality in India.

    Mal, Piyasa / Ram, Usha

    PloS one

    2023  Volume 18, Issue 10, Page(s) e0292353

    Abstract: Background: The reductions in mortality levels among children under five years are observed in most populations, including populations that were lagging the progress in the past. However, the reduction is not uniform across ages during childhood. The ... ...

    Abstract Background: The reductions in mortality levels among children under five years are observed in most populations, including populations that were lagging the progress in the past. However, the reduction is not uniform across ages during childhood. The mortality declines within the first month have shown relatively slow progress. Early initiation of breastfeeding and discarding pre-lacteal feed protects the newborn from acquiring infection and, thereby, reduces mortality. This paper assesses the change in the prevalence of early initiation of breastfeeding and pre-lacteal feed along with their associated factors, and their association with neonatal mortality in India.
    Methods: We used data from the three rounds of National Family Health Surveys conducted during 2005-06, 2015-16 and 2019-21 in India. We used bivariate and multivariate analyses to examine prevalence rates, risk factors, and relationships between breastfeeding practices, including early initiation of breastfeeding and pre-lacteal feed, and neonatal mortality.
    Results: Early initiation of breastfeeding within one hour after birth increased rapidly from 25% in 2005-06 to 42% in 2019-21, and the pre-lacteal feeding practice declined from 57% in 2005-06 to 15% in 2019-21. Pre-lacteal feed is lower in states/districts where early breastfeeding initiation is predominant and vice versa. The role of health professionals during pregnancy and the first two days after delivery significantly improved breastfeeding practice. Further, the findings suggest that an early breastfeeding initiation is associated with lower neonatal mortality, whereas pre-lacteal feed is not harmful compared to late breastfeeding initiation.
    Conclusion: Prevalence of pre-lacteal feed reduced, and initiation of early breastfeeding increased considerably after the launch of the National Rural Health Mission in India. However, after 2015-16, early breastfeeding initiation has stagnated, and the decline in pre-lacteal feed has slowed down. The future program needs special attention to emphasize the availability and accessibility of breastfeeding advisers and observers in health facilities to help mitigate adverse neonatal outcomes.
    MeSH term(s) Infant, Newborn ; Female ; Pregnancy ; Child ; Humans ; Infant ; Child, Preschool ; Mothers ; Cross-Sectional Studies ; Breast Feeding ; Infant Mortality ; India/epidemiology
    Language English
    Publishing date 2023-10-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0292353
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  3. Article ; Online: Exploring the link between particulate matter pollution and acute respiratory infection risk in children using generalized estimating equations analysis: a robust statistical approach.

    Adhikary, Mihir / Mal, Piyasa / Saikia, Nandita

    Environmental health : a global access science source

    2024  Volume 23, Issue 1, Page(s) 12

    Abstract: Background: India is facing a burdensome public health challenge due to air pollution, with a particularly high burden of acute respiratory infections (ARI) among children. To address this issue, our study aims to evaluate the association between ... ...

    Abstract Background: India is facing a burdensome public health challenge due to air pollution, with a particularly high burden of acute respiratory infections (ARI) among children. To address this issue, our study aims to evaluate the association between exposure to fine particulate matter (PM
    Materials and methods: Our study used PM
    Results: Each 10 µg/m
    Conclusion: Mitigation efforts must be continued implementing higher restrictions in India and to bring new interventions to ensure safe levels of air for reducing the burden of disease and mortality associated with air pollution in India.
    MeSH term(s) Child ; Humans ; Child, Preschool ; Particulate Matter/adverse effects ; Particulate Matter/analysis ; Air Pollutants/adverse effects ; Air Pollutants/analysis ; Environmental Exposure/adverse effects ; Environmental Exposure/analysis ; Air Pollution/adverse effects ; Air Pollution/analysis ; Respiratory Tract Infections/chemically induced ; Respiratory Tract Infections/epidemiology
    Chemical Substances Particulate Matter ; Air Pollutants
    Language English
    Publishing date 2024-01-25
    Publishing country England
    Document type Journal Article
    ZDB-ID 2092232-2
    ISSN 1476-069X ; 1476-069X
    ISSN (online) 1476-069X
    ISSN 1476-069X
    DOI 10.1186/s12940-024-01049-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Atom Transfer Radical Addition Reactions of Quinoxalin-2(1

    Pal, Buddhadeb / Sahoo, Sathi / Mal, Prasenjit

    The Journal of organic chemistry

    2024  Volume 89, Issue 3, Page(s) 1784–1796

    Abstract: The atom transfer radical addition (ATRA) reaction is defined as a method for introducing halogenated compounds into alkenes via a radical mechanism. In this study, we present an ATRA approach for achieving regioselective functionalization of quinoxalin- ... ...

    Abstract The atom transfer radical addition (ATRA) reaction is defined as a method for introducing halogenated compounds into alkenes via a radical mechanism. In this study, we present an ATRA approach for achieving regioselective functionalization of quinoxalin-2(1
    Language English
    Publishing date 2024-01-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 123490-0
    ISSN 1520-6904 ; 0022-3263
    ISSN (online) 1520-6904
    ISSN 0022-3263
    DOI 10.1021/acs.joc.3c02469
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    Zs.A 4473: Show issues Location:
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  5. Article ; Online: Regiodivergent C-N Coupling of Quinazolinones Controlled by the Dipole Moments of Tautomers.

    Bera, Shyamal Kanti / Mal, Prasenjit

    Organic letters

    2022  Volume 24, Issue 17, Page(s) 3144–3148

    Abstract: Herein, we report that the dipole moments of tautomers can be the controlling factor for regiodivergent synthesis of either ... ...

    Abstract Herein, we report that the dipole moments of tautomers can be the controlling factor for regiodivergent synthesis of either 14
    MeSH term(s) Isomerism ; Quinazolinones ; Solvents
    Chemical Substances Quinazolinones ; Solvents
    Language English
    Publishing date 2022-04-21
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1523-7052
    ISSN (online) 1523-7052
    DOI 10.1021/acs.orglett.2c00847
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  6. Article ; Online: Visible-Light Promoted Regioselective Oxygenation of Quinoxalin-2(1

    Sau, Sudip / Mal, Prasenjit

    The Journal of organic chemistry

    2022  Volume 87, Issue 21, Page(s) 14565–14579

    Abstract: A visible-light-mediated sustainable approach for metal-free oxygenation of quinoxalin-2( ... ...

    Abstract A visible-light-mediated sustainable approach for metal-free oxygenation of quinoxalin-2(1
    Language English
    Publishing date 2022-10-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 123490-0
    ISSN 1520-6904 ; 0022-3263
    ISSN (online) 1520-6904
    ISSN 0022-3263
    DOI 10.1021/acs.joc.2c01960
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    In stock of ZB MED Cologne/Königswinter

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  7. Article ; Online: CsPbBr

    Pal, Buddhadeb / Mathuri, Ashis / Manna, Anupam / Mal, Prasenjit

    Organic letters

    2023  Volume 25, Issue 22, Page(s) 4075–4079

    Abstract: Herein we have developed a strategy for chemodivergent functionalization ... ...

    Abstract Herein we have developed a strategy for chemodivergent functionalization of
    MeSH term(s) Molecular Structure
    Chemical Substances perovskite (12194-71-7)
    Language English
    Publishing date 2023-05-26
    Publishing country United States
    Document type Journal Article
    ISSN 1523-7052
    ISSN (online) 1523-7052
    DOI 10.1021/acs.orglett.3c01268
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  8. Article ; Online: Regioselective synthesis of phenanthridine-fused quinazolinones using a 9-mesityl-10-methylacridinium perchlorate photocatalyst.

    Bhanja, Rosalin / Bera, Shyamal Kanti / Mal, Prasenjit

    Chemical communications (Cambridge, England)

    2023  Volume 59, Issue 30, Page(s) 4455–4458

    Abstract: Herein, we demonstrate a regioselective intramolecular C-N cross-coupling for the synthesis of ... ...

    Abstract Herein, we demonstrate a regioselective intramolecular C-N cross-coupling for the synthesis of 14
    Language English
    Publishing date 2023-04-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/d3cc00537b
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  9. Article ; Online: Chemodivergent Chalcogenation of Aryl Alkynoates or

    Mathuri, Ashis / Pal, Buddhadeb / Pramanik, Milan / Mal, Prasenjit

    The Journal of organic chemistry

    2023  Volume 88, Issue 14, Page(s) 10096–10110

    Abstract: Herein we report a cascaded chalcogenation of aryl alkynoates ... ...

    Abstract Herein we report a cascaded chalcogenation of aryl alkynoates or
    Language English
    Publishing date 2023-07-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 123490-0
    ISSN 1520-6904 ; 0022-3263
    ISSN (online) 1520-6904
    ISSN 0022-3263
    DOI 10.1021/acs.joc.3c00926
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  10. Article ; Online: Stereoselective Synthesis of

    Dinda, Tarun Kumar / Kabir, Syed Ramizul / Mal, Prasenjit

    The Journal of organic chemistry

    2023  Volume 88, Issue 14, Page(s) 10070–10085

    Abstract: The stereoselective synthesis ... ...

    Abstract The stereoselective synthesis of
    Language English
    Publishing date 2023-07-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 123490-0
    ISSN 1520-6904 ; 0022-3263
    ISSN (online) 1520-6904
    ISSN 0022-3263
    DOI 10.1021/acs.joc.3c00911
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    In stock of ZB MED Cologne/Königswinter

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