The nonplanar amide group in N-acylaziridines: conformational behavior and chiroptical properties
作者:G. V. Shustov、G. K. Kadorkina、S. V. Varlamov、A. V. Kachanov、R. G. Kostyanovskii、A. Rauk
DOI:10.1021/ja00031a012
日期:1992.2
Chiroptical properties in the intrinsically dissymmetric amide chromophore of N-acylaziridines are investigated experimentally and by ab initio molecular orbital calculations
dimension of orthogonality for carboxylicacid protection. They can be deprotected under nearly neutral oxidative conditions. In this paper, the protection of carboxylicacid with dM-Dim, deprotection of dM-Dim ester with sodium periodate, stability of dM-Dim protected carboxylicacid under acidic and basic conditions, and selective deprotection of dM-Dim protected carboxylicacids in the presence of tertiary
Synthesis of Functional Fluorescent BODIPY-based Dyes through Electrophilic Aromatic Substitution: Straightforward Approach towards Customized Fluorescent Probes
作者:Giorgio Mirri、Daniël C. Schoenmakers、Paul H. J. Kouwer、Peter Veranič、Igor Muševič、Bogdan Štefane
DOI:10.1002/open.201600067
日期:2016.10
without the support of an organic chemistry laboratory. Here, we present a straightforward method for the customization of BODIPY cores, which are among the most commonly used fluorescent probes. The method is based on the formation of a new C−C bond through Friedel–Crafts electrophilic aromatic substitution carried out at room temperature. The method presented can be used to obtain completely customized
Optically active compounds and liquid crystal compositions containing
申请人:Wako Pure Chemical Industries, Ltd.
公开号:US05128062A1
公开(公告)日:1992-07-07
An optically active compound of the formula: ##STR1## wherein R is alkyl or alkoxy, R* is an optically active alkyl group, X is alkyl or halogen, Y is a single bond ##STR2## and C* is an asymmetric carbon, is chemically stable and shows or induces large spontaneous polarization and is useful in a chiral liquid crystal composition.
作者:Leslie Crombie、Raymond C.F. Jones、Christopher J. Palmer
DOI:10.1016/s0040-4039(00)98874-9
日期:1985.1
Syntheses of natural 4-alkyl and 4-aryl coumarins with hexasubstituted aromatic rings, uncouplers of oxidative phosphorylation, are reported. MammeaB/BB, by synthesis, is the (S)-(−)-compound.
据报道,天然的4-烷基和4-芳基香豆素与六取代的芳环(氧化磷酸化的解偶联剂)的合成。合成的Mammea B / BB是(S)-(-)-化合物。