The combined use of aluminumtris(2,6-diphenylphenoxide) (ATPH) and lithium 2,2,6,6-tetramethylpiperidide (LTMP) has proven to be effective for the mixed crossed aldolcondensation between conjugated esters and various aldehydes. An example is shown in Equation (1).
Synthesis of Functionalized Cyclopropanes from Carboxylic Acids by a Radical Addition–Polar Cyclization Cascade
作者:Chao Shu、Riccardo S. Mega、Björn J. Andreassen、Adam Noble、Varinder K. Aggarwal
DOI:10.1002/anie.201808598
日期:2018.11.19
Herein, we describe the development of a photoredox‐catalyzed decarboxylative radical addition–polar cyclization cascade approach to functionalized cyclopropanes. Reductive termination of radical–polar crossover reactions between aliphatic carboxylicacids and electron‐deficient alkenes yielded carbanion intermediates that were intercepted in intramolecular alkylations with alkyl chlorides appended
SELF-ASSEMBLED MONOLAYERS AND METHODS FOR USING THE SAME IN BIOSENSING APPLICATIONS
申请人:Dussault Patrick H.
公开号:US20120315625A1
公开(公告)日:2012-12-13
Cross-linked amphiphile constructs that form self-assembled monolayers (SAMs) on metal surfaces such as gold surfaces are disclosed. These new SAMs generate well packed and highly oriented monolayer films on gold surfaces. A method for using the SAMs in the fabrication of biomolecule sensors is also disclosed.
Palladium-catalyzed cross coupling of allyl halides with organotin reagents: a method of joining highly functionalized partners regioselectively and stereospecifically
作者:Forrest K. Sheffy、J. P. Godschalx、J. K. Stille
DOI:10.1021/ja00329a032
日期:1984.8
La reaction catalysee par le palladium d'halogenures allyliques avec des reactifs aryl- et vinylstannanes donne des produits de copulation croisee. En presence de monoxyde de carbone, des cetones sont obtenues, resultant d'une copulation croisee accompagnee d'une insertion de CO. La reaction est douce et s'effectue meme en presence de diverses fonctions (OH, OR, CN, CO 2 R, CHO) soit sur le chlorure
La 反应催化剂 par le palladium d'halogenures allyliques avec des reactifs aryl- etvinylstannanes donne des produits de copulation croisee。En存在 de monooxyde de carbone, des cetones sont obtenues, result d'une copulation croisee accompagnee d'une insert de CO. La反应 est douce et s'effectue meme en 存在 de differents fonctions (OH, OR, CN, CO 2 R , CHO) soit sur le le chlorure allylique soit sur le stannane
Carotenoids and related compounds. Part XVIII. Synthesis of cis- and di-cis-polyenes by reactions of the Wittig type
作者:Gerald Pattenden、B. C. L. Weedon
DOI:10.1039/j39680001984
日期:——
Some claims to have achieved “cis-olefination” have been re-examined.