Teng, Ming-yu published the artcileSynthesis, chemo-selective properties of substituted 9-aryl-9H-fluorenes from triarylcarbinols and enantiomerical kinetics of chiral 9-methoxy-11-(naphthalen-1-yl)-11H-benzo[a]fluorene, Quality Control of 35112-27-7, the main research area is fluorene aryl preparation crystal mol structure; triarylcarbinol acidification.
9-Aryl-fluorenes were synthesized conveniently from triarylcarbinols in the presence of TsOH. Notably, the orientation of the intramol. aromatic substitution reaction was dictated by the nature of the substituents on the aryl rings of triarylcarbinols, owing to electronic and conjugated effects. In particular, triarylcarbinols with (3-methoxy)phenyl and naphthalenyl groups formed benzo[a]fluorenes selectively. Moreover, 9-methoxy-11-(naphthalen-1-yl)-11H-benzo[a] fluorene, with a center of chirality, exists as a mixture of diastereoisomers, due to the restricted rotation of a C-C single bond. First-order rate constants for the enantiomerization of 9-methoxy-11-(naphthalen-1-yl)-11H-benzo[a] fluorene in DMSO were obtained over the temperature from 297 K to 393 K, and thermodn. parameters were determined as ΔH‡ = 99.7 kJ mol-1, ΔS‡373 K = 37.7 J mol-1 K-1, and ΔG‡373 K = 85.6 kJ mol-1 by Eyring plot anal.
RSC Advances published new progress about Atropisomers. 35112-27-7 belongs to class chlorides-buliding-blocks, name is Ethyl 2,5-dichlorobenzoate, and the molecular formula is C9H8Cl2O2, Quality Control of 35112-27-7.
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics