Structural Requirements of 2-Oxoglutaric Acid Analogues To Mimic Its Signaling Function
摘要:
A 2-oxoglutaric acid (2-OG) probe bearing a methylene group introduced at the C4 position and a vinyl group to replace the carbonyl group at the C2 position elicited characteristic affinity for NtcA, the 2-OG receptor, while maintaining the signaling function of the parent natural metabolite 2-OG. This discovery opens new perspectives in the design, synthesis, and implementation of specific 2-OG analogues as molecular probes for investigating the complex 2-OG signaling pathways.
Catalyst-Free Synthesis of Skipped Dienes from Phosphorus Ylides, Allylic Carbonates, and Aldehydes via a One-Pot S<sub>N</sub>2′ Allylation–Wittig Strategy
A catalyst-free allylic alkylation of stabilized phosphorus ylides with allylic carbonates via a regioselective SN2′ process is presented. Subsequent one-pot Wittig reaction with both aliphatic and aromatic aldehydes as well as ketenes provides structurally diverse skipped dienes (1,4-dienes) in generally high yields and moderate to excellent stereoselectivity with flexible substituent patterns. This
提出了通过区域选择性的S N 2'方法将稳定的磷化磷与烯丙基碳酸酯进行无催化剂的烯丙基烷基化反应。随后的与脂肪族和芳香族醛以及乙烯酮的一锅Wittig反应可提供结构多样的跳跃式二烯(1,4-二烯),且产率高,并且具有灵活的取代基图案,具有中等至出色的立体选择性。这种单锅S N 2'烯丙基化-维蒂希(Wittig)策略构成了一种方便有效的合成方法,用于从容易获得的起始原料中高度官能化的二烯。
The Baylis−Hillman Reaction: One-Pot Facile Synthesis of 2,4-Functionalized 1,4-Pentadienes
作者:Deevi Basavaiah、Duddu S. Sharada、Nagaswamy Kumaragurubaran、Ravi Mallikarjuna Reddy
DOI:10.1021/jo0257952
日期:2002.10.1
The Baylis-Hillman coupling between activated alkenes and alkyl 2-(bromomethyl)prop-2-enoates in the presence of DABCO (or DBU) leading to the formation of 2,4-functionalized 1,4-pentadienes, has been described.
Regio- and stereo-specific class 2 tandem Michael addition-cycloaddition reactions of oximes
作者:Ronald Grigg、John F. Malone、Michael R.J. Dorrity、Frances Heaney、Shuleewan Rajviroongit、Visuvanathar Sridharan、Sivagnanasundram Surendrakumar
DOI:10.1016/s0040-4039(00)80487-6
日期:1988.1
Buchman; Reims; Schlatter, Journal of the American Chemical Society, 1942, vol. 64, p. 2705
作者:Buchman、Reims、Schlatter
DOI:——
日期:——
GRIGG, RONALD;MALONE, JOHN F.;DORRITY, MICHAEL R. J.;HEANEY, FRANCES, TETRAHEDRON LETT., 29,(1988) N 34, C. 4323-4324
作者:GRIGG, RONALD、MALONE, JOHN F.、DORRITY, MICHAEL R. J.、HEANEY, FRANCES