Results 121 to 130 of about 13,233 (208)

The dependence of the molecular first hyperpolarizabilities of merocyanines on ground-state polarization and length [PDF]

, 1994
We report here the dipole moment (µ) and first hyperpolarizability (β) determined by electric field-induced second harmonic generation, for several merocyanine dyes containing an 1,3,3-trimethylindoline heterocycle as a ‘donor’ in which the ‘acceptor ...
Cavagnero, Silvia, Cheng, Lap-Tak, Marder, Seth R., Ortiz, Rafael, Tiemann, Bruce G., Ziller, Joseph W.   +5 more
core   +1 more source

Synthesis and crystal structures of 5'-phenylspiro[indoline-3, 2'-pyrrolidin]-2-one derivatives

Chemistry Central Journal, 2011
Background The spiro- indole-pyrrolidine ring system is a frequently encountered structural motif in many biologically important and pharmacologically relevant alkaloids. The derivatives of spirooxindole ring systems are used as antimicrobial, antitumour
Perumal Subbu, Sivamani Jeyaraman, Rajesh Stephen, Sundar Jeyaperumal, Natarajan Subramanian   +4 more
doaj   +1 more source

Catalytic enantioselective synthesis of quaternary carbon stereocentres. [PDF]

, 2014
Quaternary carbon stereocentres-carbon atoms to which four distinct carbon substituents are attached-are common features of molecules found in nature. However, before recent advances in chemical catalysis, there were few methods of constructing single ...
Overman, Larry E, Quasdorf, Kyle W
core  

Methyl isocyanide as a convertible functional group for the synthesis of spirocyclic oxindole γ-lactams via post-Ugi-4CR/transamidation/cyclization in a one-pot, three-step sequence

Beilstein Journal of Organic Chemistry, 2018
The synthesis of spiro[indoline-3,2'-pyrrole]-2,5'(1'H)-diones and spiro[indoline-3,2'-pyrrolidine]-2,5'-diones, via a post-Ugi-domino transamidation/cyclization sequential process, has been achieved in three sequential steps utilizing a one-pot reaction
Amarendar Reddy Maddirala, Peter R. Andreana   +1 more
doaj   +1 more source

Additive-assisted regioselective 1,3-dipolar cycloaddition of azomethine ylides with benzylideneacetone

Beilstein Journal of Organic Chemistry, 2014
1,3-Dipolar cycloadditions of isatins, benzylamine and benzylideneacetones were studied to prepare a series of novel spiropyrrolidine-oxindoles – 4′-acetyl-3′,5′-diarylspiro[indoline-3,2′-pyrrolidin]-2-ones and 3′-acetyl-4′,5′-diarylspiro[indoline-3,2 ...
Chuqin Peng, Jiwei Ren, Jun-An Xiao, Honggang Zhang, Hua Yang, Yiming Luo   +5 more
doaj   +1 more source

医薬品シーズ開発を指向した新規オキシインドール環形成反応の開発と応用 [PDF]

, 2018
関西大
Yamai Yusuke, 山井 悠介
core   +1 more source

Asymmetric Pd-NHC*-catalyzed coupling reactions [PDF]

, 2017
Very high asymmetric inductions result in the Pd-catalyzed intramolecular arylation of amides to give 3,3-disubstituted oxindoles when new in situ-generated chiral N-heterocyclic carbene (NHC*) ligands are employed.
Jia, Yixia, Katayev, Dmitry, Kündig, E. Peter, Nakanishi, Masafumi   +3 more
core  

Insights into the myosin II inhibitory potency of A-ring-modified (S)-blebbistatin analogs [PDF]

, 2017
Bracke, Marc, Roman, Bart, Stevens, Christian, Van den broecke, Tom, Verhasselt, Sigrid   +4 more
core   +2 more sources

Synthesis of Trifluoromethyl-Functionalized Indolines through [4 + 1] Cyclization of Imidoyl Sulfoxonium Ylide with <i>ortho</i>-Chloromethyl Aniline. [PDF]

ACS Omega
Long Y, Wang Y, Pan Y, Pan X, Zhang X, Zhang X, Jiang T.   +6 more
europepmc   +1 more source

Synthesis, characterization, molecular docking and in vitro anti-arthritic activity of some novel spiro [1,3,4] thiadiazole derivatives based on thioxoacetamides. [PDF]

BMC Chem
El-Saghier AM, Abdul-Baset A, El-Hady OM, Abdou A, Hamed AM, Kadry AM.   +5 more
europepmc   +1 more source