Results 261 to 270 of about 1,292,086 (300)

The impact of profitability on scope 1, 2 and 3 GHG emissions in Europe [PDF]

open access: yes
This thesis examines the effect of corporate profitability on the levels of greenhouse gas (GHG) emissions, specifically analyz-ing Scope 1, 2, and 3 emissions for European companies listed on the STOXX Europe 600 index from 2017 to 2023. Givenincreasing regulatory pressures, inconclusive evidence on whether profitability drives sustainability, and ...
Hohenstein, Yannick
core   +5 more sources

Scope of [1 + 2 + 3] annulations using aminonitriles as Michael donors

The Journal of Organic Chemistry, 1993
The reaction of (N,N-dimethylamino)phenylacetonitrile anion (I) as a one-carbon atom Michael donor toward α,β-unsaturated lactones and ketones followed by allylation of the intermediate enolates provided in a one-pot procedure trans α-monoallylated β-substituted lactones and cyclanones 4a-d, 5, and 6b.
Marie Claude Roux   +6 more
openaire   +1 more source

ChemInform Abstract: Scope of (1 + 2 + 3)Annulations Using Amino Nitriles as Michael Donors.

ChemInform, 1993
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
M.‐C. ROUX   +6 more
openaire   +1 more source

A study on the scope of the photochemical ring contraction of substituted 2-amino-3-cyano-4H-pyrans to cyclobutenes: crystal structure of 3-carbamoyl-3-cyano-1-ethoxycarbonyl-4-isopropyl-2-phenylcyclobutene

Journal of the Chemical Society, Perkin Transactions 1, 1997
A study on the influence of substitution on the photochemical reactivity of a series of differently substituted 2-amino-4H-pyrans 10a–h has been carried out. All of the compounds undergo ring contraction to the corresponding cyclobutenes 11a–h on direct irradiation. Variable amounts of the enamides 12 and the alkynes 13 were also obtained, as secondary
Diego Armesto   +7 more
openaire   +2 more sources

Diversity-Oriented Synthesis of Functionalized Diaryl Sulfones by Regio­selective [3+3] Cyclizations of 1,3-Bis(siloxy)buta-1,3-dienes with 2-(Aryl­sulfonyl)-3-ethoxy-2-en-1-ones: Scope and Limitations

Synthesis, 2009
The formal [3+3] cyclization of 1,3-bis(siloxy)buta-1,3-dienes with 2-(arylsultonyl)-3-ethoxy-Z-en-1-ones, readily available by reaction of β-keto sulfones with triethyl orthoformate, allows the synthesis of a variety of functionalized diaryl sulfones with very good regioselectivity.
Peter Langer   +5 more
openaire   +1 more source

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