必应词典为您提供allylic-strain的释义,网络释义: 烯丙位张力;烯丙基张力;
Allylic strain(also known asA1,3strain,1,3-allylic strain, orA-strain) inorganic chemistryis a type ofstrain energyresulting from the interaction between a substituent on one end of an olefin with an allylic substituent on the other end.[1]If the substituents (R and R') are large enough ...
Definition of Allylic Strain Allylic strain is a type of molecular strain energy associated with a compound that results from the interaction between the substituents (atom or group of atoms) on the ends of an alkene. An alkene is a type of organic compound that contains a carbon-carbon double...
1,3-allylic strain as a control element in the Paterno-Buchi reaction of chiral silyl enol...Studies the facial diastereoselectivity in the Paterno-Buchi reaction of chiral silyl enol ethers and benzaldehyde. Influence of steric bulk; Positions of the polar groups; Variations; Combination yields ...
librariesinwhichthepres- enceorabsenceof1,3-allylicstrain(A 1,3 strain) [3] isleveraged toenhanceboth1)scaffolddiversitybyregiodivergentopen- ingofepoxideintermediatesand2)theconformationalspace ofthefinallibrarythroughthesimpleexpedientofchanging thenatureofnitrogensubstitution. [4] Theconceptisillus- trate...
Demonstrates the efficacy of 1,3-allylic strain in promoting conformational preferences in [4+2] cycloadditions with asymmetric dienols. pi-facial selectiv... Adam,Waldemar,Glaser,... - 《Journal of the American Chemical Society》 被引量: 13发表: 1995年 Stereodivergent synthesis of chiral 2-alk...
Yokoyama Y, Tsuchikura K (1992) Doubly allylic strain-controlled diastereoselective intramolecular Michael addition and a synthesis of (±)-iridomyrmecin. Tetrahedron Lett 33:2823–2824 View ArticleYOKOYAMA, Y. and TSUCHIKURA, K. 1992. Doubly allylic strain-controlled diastereoselective in- tra...
Allylic 1,3-Strain as a Controlling Factor in Stereoselective Transformations - HoffmannHoffmann RW (1989) Allylic 1,3-strain as a controlling factor in stereoselective transformations. Chem Rev 89:1841-1860Hoffmann, R. W. Allylic 1,3-strain as a controlling factor in stereoselective transformations...
Highly Like-Selective [4 + 2] Cycloadditions of Chiral Dienols: The Importance of 1,3-Allylic Strain in the Hydroxy-Directed Stereocontrol W Adam,J Glaeser,K Peters,... - 《Journal of the American Chemical Society》 被引量: 205发表: 1995年 Diastereoselectivity in the Carroll rearrangement ...
Allylic alkylation. Palladium-catalyzed substitutions of allylic carboxylates. Stereo- and regiochemistry New synthetic reactions. Asymmetric induction in allylic alkylations ChemInform Abstract: Allylic 1,3-Strain as a Controlling Factor in Stereoselective Transformations ...