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Dive into the research topics where Urmila Berar is active.

Publication


Featured researches published by Urmila Berar.


Journal of the Brazilian Chemical Society | 2010

Photochemistry of 3-alkoxychromones: photocyclisation of 2-aryl-6-chloro-3-{(thiophen-2-yl)methoxy}chromones

Ramesh C. Kamboj; Urmila Berar; Surinder Berar; Zeba N. Siddiqui; Satish C. Gupta

1,4-Biradicals generated upon photo-irradiation of 2-aryl-3-{(thiophen-2-yl)methoxy}chromones produced angular tetracyclic products bearing the thienyl group. The dehydrogenation and ring contraction products were also observed depending upon the electron density on the 2-aryl ring.


Beilstein Journal of Organic Chemistry | 2007

Synthesis of spiropyrans: H-abstractions in 3-cycloalkenyloxybenzopyrans

Satish C. Gupta; Mandeep Thakur; Somesh Sharma; Urmila Berar; Surinder Berar; Ramesh C. Kamboj

A photochemical route for the synthesis of some benzopyronospiropyrans from 2-furyl-3-cycloalkenyloxybenzopyrones involving H-abstraction is reported. How a methyl group on the furyl ring affects the product formation is also investigated.


Tetrahedron | 2008

Photo-transformations of 6-chloro-3-propargyloxy-2-aryl-4-oxo-4H-1-benzopyran: 1,4-hydrogen abstraction in propargylethers

Mandeep Thakur; Surinder Berar; Urmila Berar; Surinder Arora; Satish C. Gupta; Ramesh C. Kamboj


Journal of Photochemistry and Photobiology A-chemistry | 2009

Phototransformations of some 3-alkoxy-6-chloro-2-{(E)-1′-methyl-2′-phenylvinyl}chromones: A study of type-II and triene bichromophoric system

Ramesh C. Kamboj; Surinder Berar; Urmila Berar; Mandeep Thakur; Satish C. Gupta


Indian Journal of Chemistry Section B-organic Chemistry Including Medicinal Chemistry | 2009

Photo-reorganization of some 3-alkoxy-2-(alkoxyphenyl)chromones

Ramesh C. Kamboj; Urmila Berar; Surinder Berar; Mandeep Thakur; Satish C. Gupta


Orbital: The Electronic Journal of Chemistry | 2012

Chalcones: compounds possessing a diversity in applications

Urmila Berar


Journal of The Indian Chemical Society | 2009

Synthesis of spirocyclic compounds: A photochemical approach

Ramesh C. Kamboj; Mandeep Thakur; Rita Arora; Surinder Berar; Urmila Berar; Satish C. Gupta


Chinese Chemical Letters | 2008

Novel generation of 9H-furo[3,2-b]chromen-9-ones from (E)-3-hydroxy-2-styrylchromones by excited state intramolecular proton transfer

Surinder Berar; Urmila Berar; Satish C. Gupta; Ramesh C. Kamboj


Journal of Photochemistry and Photobiology A-chemistry | 2016

Photochemistry of aroyloxiranes: Substituent effect on oxepinones and hydroxyalkenones formation

Aarti Dalal; Radhika Khanna; Urmila Berar; Ramesh C. Kamboj


Journal of The Indian Chemical Society | 2009

Photoinduced reactions: Phototransformations of 2-aryl-3-(methoxymethoxy)-chromones

Ramesh C. Kamboj; Mandeep Thakur; Surinder Berar; Urmila Berar; Zeba N. Siddiqui; Satish C. Gupta

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Aarti Dalal

Kurukshetra University

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Rita Arora

Kurukshetra University

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