- Radical condensation between benzylic alcohols and acetamides to form 3-arylpropanamides
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A new radical condensation reaction is developed where benzylic alcohols and acetamides are coupled to generate 3-arylpropanamides with water as the only byproduct. The transformation is performed with potassium tert-butoxide as the only additive and gives rise to a variety of 3-arylpropanamides in good yields. The mechanism has been investigated experimentally with labelled substrates, trapping experiments and spectroscopic measurements. The findings indicate a radical pathway where potassium tert-butoxide is believed to serve a dual role as both base and radical initiator. The radical anion of the benzylic alcohol is proposed as the key intermediate, which undergoes coupling with the enolate of the amide to form the new C-C bond. Subsequent elimination to the corresponding cinnamamide and olefin reduction then affords the 3-arylpropanamides.
- Azizi, Kobra,Madsen, Robert
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p. 7800 - 7806
(2020/08/14)
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- Selective aerobic oxidation of alkyl aromatics on Bi2MoO6 nanoplates decorated with Pt nanoparticles under visible light irradiation
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Pt/Bi2MoO6 nanoplates are efficient photocatalysts for the selective oxidation of saturated C-H bonds in alkyl aromatics under visible light illumination using O2 as an oxidant. This study opens a new window for direct C-H functionalization through the photocatalytic method based on cheap Bi2MoO6 semiconductor materials.
- Zhang, Bao,Yang, Xiaojing,Li, Jun,Cheng, Gang
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supporting information
p. 12194 - 12197
(2018/11/21)
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- COMPOUNDS REDUCING MALODOUR PERCEPTION AND THE USE THEREOF
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The present invention relates to new malodour-counteracting agents of formula (I) or stereoisomers thereof, particularly useful in blocking the olfactory perception of androstenone, Formula (I), wherein R1, R2, R3,R4, R5, R6, R7 and X have the same meaning as that defined in the claims. The present invention also relates to consumer products comprising said agents. The present invention also relates to the use of said agents to suppress or attenuate undesirable odour, as well as to methods to suppress or attenuate undesirable odour employing said compounds.
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Page/Page column 55; 56
(2018/09/08)
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- Expeditious construction of a carbobicyclic skeleton via sp3-C-H functionalization: Hydride shift from an aliphatic tertiary position in an internal redox process
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Described herein is the first example of an aliphatic, nonbenzylic hydride shift/cyclization sequence that contains two types of novel sp3-C-H functionalization: (1) construction of a tetraline skeleton via [1,5]-hydride shift/cyclization and (2) [1,6]-hydride shift/cyclization to form a five-membered ring (indane derivatives).
- Mori, Keiji,Sueoka, Shosaku,Akiyama, Takahiko
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supporting information; experimental part
p. 2424 - 2426
(2011/04/25)
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