3 article(s) from Heindl, Andreas H
Graphical Abstract
Figure 1: 1,3,5-Tris(arylazo)benzenes as individually switchable multistate photoswitches: previous [11,12] and pres...
Scheme 1: Synthetic strategy towards 1,3,5-tris(arylazo)benzenes 3 based on consecutive Baeyer–Mills reaction...
Scheme 2: Preparation of tris(arylazo)benzenes 3 by Pd-catalyzed cross-coupling reactions of N-Boc-arylhydraz...
Scheme 3: Synthesis of azobenzene building block 8.
Scheme 4: Synthesis of 1,3-bis(4-methoxyphenylazo)-5-phenylazobenzene (14).
Scheme 5: Synthesis of unsymmetrical tris(arylazo)benzenes 3a/3b using Pd-catalyzed coupling reactions and Cu...
Scheme 6: Coupling reactions of 15 with the corresponding arylhydrazides to access monocoupled (16a/16b) and ...
Figure 2: a) UV–vis spectra of tris(arylazo)benzenes 3a/3b in ethanol. b) Reversible photoisomerization of 3a...
Graphical Abstract
Scheme 1: Half-lives for the thermal Z→E isomerization of all-meta-alkyl-substituted azobenzenes 1–3 in DMSO ...
Scheme 2: Isomerization of N-substituted Z-azobenzenes (a). Rotational equilibrium of (Z)-4 allowing intramol...
Figure 1: a) Optimized geometry of open conformer (R,S)-4 c0. b) NCI plot of the most stable conformer of (R,S...
Graphical Abstract
Scheme 1: Bidentate bisborane Lewis acids.
Scheme 2: Complexation reaction of 5,10-dimethyl-5,10-dihydroboranthrene (A) with Lewis bases analyzed by NMR...
Figure 1: Time-dependent 1H NMR spectra of the air-exposed complex B.
Scheme 3: Synthetic procedures of bisboranes A and B.
Figure 2: ORTEP drawing (50% probability) of complex B.
Figure 3: UV–vis spectrum of complex B was measured in CHCl3 and compared with pyridazine and bisborane A (co...