scholarly journals Metal-free remote-site C–H alkenylation: regio- and diastereoselective synthesis of solvatochromic dyes

2018 ◽  
Vol 20 (3) ◽  
pp. 701-712 ◽  
Author(s):  
María José Albaladejo ◽  
María José González-Soria ◽  
Francisco Alonso
Keyword(s):  
Diastereoselective Synthesis ◽  
Remote Site ◽  
Metal Free ◽  
New Family ◽  
Solvatochromic Dyes

The metal-free regio- and diastereoselective remote C–H self-alkenylation of indolizines leads to a new family of solvatochromic dyes.

Regio- and diastereoselective synthesis of trans-3,4-diaryldihydrocoumarins via metal-free [4+2] annulation of ynamides with o-hydroxybenzyl alcohols

2021 ◽  
Author(s):  
Wen-Feng Luo ◽  
Long-Wu Ye ◽  
Long Li ◽  
Peng-Cheng Qian
Keyword(s):  
Diastereoselective Synthesis ◽  
Metal Free

An efficient regio- and diastereoselective method for the construction of valuable trans-3,4-diaryldihydrocoumarins via metal-free formal [4+2] annulation of ynamides with o-hydroxybenzyl alcohols has been developed.

ChemInform Abstract: Metal-Free Diastereoselective Synthesis of Diaza-bicyclo[3.2.0]heptan-7-one and Its Transformation to Functionalized Proline Esters.

ChemInform ◽  
2014 ◽  
Vol 45 (41) ◽  
pp. no-no
Author(s):  
Yogesh Kumar ◽  
Bilash Kuila ◽  
Dinesh Mahajan ◽  
Prabhpreet Singh ◽  
Balaram Mohapatra ◽  
...  
Keyword(s):  
Diastereoselective Synthesis ◽  
Metal Free

Metal-free diastereoselective synthesis of diaza-bicyclo[3.2.0]heptan-7-one and its transformation to functionalized proline esters

2014 ◽  
Vol 55 (17) ◽  
pp. 2793-2795 ◽  
Author(s):  
Yogesh Kumar ◽  
Bilash Kuila ◽  
Dinesh Mahajan ◽  
Prabhpreet Singh ◽  
Balaram Mohapatra ◽  
...  
Keyword(s):  
Diastereoselective Synthesis ◽  
Metal Free

Diastereoselective synthesis of spiro[cyclopropane-1,3′-indolin]-2′-ones through metal-free cyclopropanation using tosylhydrazone salts

RSC Advances ◽  
2014 ◽  
Vol 4 (72) ◽  
pp. 38425-38432 ◽  
Author(s):  
Jeevak Sopanrao Kapure ◽  
Chada Narsimha Reddy ◽  
Praveen Reddy Adiyala ◽  
Ranjita Nayak ◽  
V. Lakshma Nayak ◽  
...  
Keyword(s):  
Transition Metal ◽  
Diazo Compounds ◽  
Diastereoselective Synthesis ◽  
Metal Free

Anticancer spiro[cyclopropane-1,3′-indolin]-2′-ones are accessible through a transition metal-free diastereoselective cyclopropanation using in situ generated diazo-compounds.

scholarly journals Macro-mesoporous resorcinol–formaldehyde polymer resins as amorphous metal-free visible light photocatalysts

2015 ◽  
Vol 3 (30) ◽  
pp. 15413-15419 ◽  
Author(s):  
Guan Zhang ◽  
Chengsheng Ni ◽  
Lingjuan Liu ◽  
Guixia Zhao ◽  
Federica Fina ◽  
...  
Keyword(s):  
Visible Light ◽  
Amorphous Metal ◽  
Resorcinol Formaldehyde ◽  
Metal Free ◽  
New Family

Macro–mesoporous resorcinol–formaldehyde (urea) resins have been demonstrated as a new family of metal-free visible light photocatalysts.

scholarly journals CxNy: New Carbon Nitride Organic Photocatalysts

2021 ◽  
Vol 8 ◽  
Author(s):  
Nieves López-Salas ◽  
Josep Albero
Keyword(s):  
Carbon Nitride ◽  
Theoretical Calculations ◽  
Chemical Properties ◽  
Electronic Configuration ◽  
High Refractive Index ◽  
Visible Range ◽  
Metal Free ◽  
Recent Success ◽  
New Family ◽  
Chemical Morphology

The search for metal-free and visible light-responsive materials for photocatalytic applications has attracted the interest of not only academics but also the industry in the last decades. Since graphitic carbon nitride (g-C3N4) was first reported as a metal-free photocatalyst, this has been widely investigated in different light-driven reactions. However, the high recombination rate, low electrical conductivity, and lack of photoresponse in most of the visible range have elicited the search for alternatives. In this regard, a broad family of carbon nitride (CxNy) materials was anticipated several decades ago. However, the attention of the researchers in these materials has just been awakened in the last years due to the recent success in the syntheses of some of these materials (i.e., C3N3, C2N, C3N, and C3N5, among others), together with theoretical simulations pointing at the excellent physico-chemical properties (i.e., crystalline structure and chemical morphology, electronic configuration and semiconducting nature, or high refractive index and hardness, among others) and optoelectronic applications of these materials. The performance of CxNy, beyond C3N4, has been barely evaluated in real applications, including energy conversion, storage, and adsorption technologies, and further work must be carried out, especially experimentally, in order to confirm the high expectations raised by simulations and theoretical calculations. Herein, we have summarized the scarce literature related to recent results reporting the synthetic routes, structures, and performance of these materials as photocatalysts. Moreover, the challenges and perspectives at the forefront of this field using CxNy materials are disclosed. We aim to stimulate the research of this new generation of CxNy-based photocatalysts, beyond C3N4, with improved photocatalytic efficiencies by harnessing the striking structural, electronic, and optical properties of this new family of materials.

scholarly journals Metal-Free Assemblage of Four C−N and Two C−C Bonds via a Cascade Five Component Diastereoselective Synthesis of Pyrido[1,2-a ]Pyrimidines

2018 ◽  
Vol 3 (41) ◽  
pp. 11565-11568 ◽  
Author(s):  
Atieh Rezvanian ◽  
Fereshteh Alinaghian ◽  
Majid M. Heravi
Keyword(s):  
Diastereoselective Synthesis ◽  
Metal Free

Functionalization graphene oxide with energetic groups as a new family of metal-free and energetic burning rate catalysts and desensitizers for ammonium perchlorate

2019 ◽  
Vol 140 (5) ◽  
pp. 2111-2122 ◽  
Author(s):  
Jian Cheng ◽  
Jingchun Yan ◽  
Lei Wang ◽  
Rongxian Zhang ◽  
Zuliang Liu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Burning Rate ◽  
Ammonium Perchlorate ◽  
Metal Free ◽  
New Family
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