Results 51 to 60 of about 630 (149)

A joint theoretical and experimental insight into the electronic structure of chromophores derived from 6H,12H-5,11-methano-dibenzo[b,f][1,5]diazocine [PDF]

, 2007
We report on the synthesis and electronic spectra of the chiral, donor-acceptor (push-pull) chromophores (±)-4 and (±)-5 with a 6H,12H-5,11-methanodibenzo[b,f][1,5]diazocine scaffold (Scheme 1 and Fig. 2).
Mujawase, Aline, Lemaur, Vincent, Sergeyev, Sergey, Mujawase, A., Sergueev, Serguei, Didier, Delphine, Cornil, Jérôme, Didier, D.   +7 more
core   +1 more source

Crystal structure of 1,1′-diformyl-4,4′-(6H,12H-5,11-methano-dibenzo[b,f][11,5]diazocine-2,8-diyl)dibenzene, C29H22N2O2

Zeitschrift für Kristallographie - New Crystal Structures, 2016
C29H22N2O2, triclinic, P1̅ (no. 2), a = 22.4995(6) Å, b = 9.9370(3) Å, c = 21.6466(6) Å, β = 115.941(1)°, V = 4352.1(2) Å3, Z = 4, Rgt(F) = 0.0487, wRref(F2) = 0.1473, T = 296 K.
Qiu Feng, Wan Yu, Huang Shu-ying, Zhou Qiu-ju, Cui Hao, Chu Yan-huan, Zhou Sheng-Liang, Han Xiang-en, Wu Hui   +8 more
doaj   +1 more source

Synthetic studies towards 1,5-benzodiazocines

, 2013
Anthranilonitrile reacted with phenylmagnesium bromide to yield a dianion, which when heated (similar to 120 degrees C) yielded the condensation product 2-(2-aminophenyl)-2,4-dipheny1-1,2-dihydroquinazoline 8.
Bergman, Jan, Jan Bergman, Pettersson, Birgitta, Birgitta Pettersson, Per H. Svensson, Pettersson, B, Svensson, PH, Bergman, J, Svensson, Per H.,   +8 more
core   +1 more source

Difluoramination of Heterocyclic Ketones:  Control of Microbasicity

, 2016
Difluoramination of a tetrahydro-1,5-diazocine-3,7(2H,6H)-dione to the corresponding 3,3,7,7-tetrakis(difluoramino)diazocine was achieved by a judicious choice of protecting group.
Charles B. Kreutzberger (3042687), Robert D. Chapman (3038727), Mark F. Welker (3042690)   +2 more
core   +1 more source

Bromination and iodination of 6H,12H-5, 11-methanodibenzo[b,f][1,5] diazocine: A convenient entry to unsymmetrical analogs of Tröger's base

, 2007
6H,12H-5,11-Methanodibenzo[b,f][1,5]diazocine can easily be prepared from aniline and paraformaldehyde. Its reactions with either N-bromosuccinimide (NBS) or with iodine monochloride (ICl) in the presence of a suitable activator smoothly afford 2-bromo ...
Sergueev, Serguei, Didier, Delphine, Sergey Sergeyev, Delphine Didier   +3 more
core   +1 more source

Nitrogen Bridged Diazocines: Photochromes Switching within the Near-Infrared Region with High Quantum Yields in Organic Solvents and in Water

, 2019
Diazocines are bridged azobenzenes with superior photophysical properties. In contrast to azobenzenes the Z configuration is thermodynamically stable and the E isomer is metastable.
Arne Brahms (7250702), Eduard Stadler (7250699), Frank D. Sönnichsen (1669645), Jens Gröbner (7250705), Pascal Lentes (3189786), Georg Gescheidt (1290099), Fynn Röhricht (3189783), Rainer Herges (1393300)   +7 more
core   +3 more sources

Skeletally Diverse Synthesis of Indole-Fused Diazocine and Diazepine Frameworks by One-Pot, Two-Component Cascade Reaction

, 2016
An expeditious and novel strategy has been explored for the synthesis of structurally diverse indole-fused diazocine and diazepine derivatives. A substrate-based diversification approach of methyl-3-aminoindole/indoline benzoates coupled with the Pictet ...
Tushar Ulhas Thikekar (1433965), Manikandan Selvaraju (1433962), Chung-Ming Sun (1433968)   +2 more
core   +1 more source

Steric effects in some 2,2'-bridged biphenyls

, 1961
Two types of bridged biphenyls are discussed in this thesis, 3,4:5, 6-dibenzazepinium compounds and 5,6:7,8-dibenzo-1,4-diazocines.An attempt to synthesise 2,7-dihydro-4' -methoxy-3.4:5,6-dibenzazepinium-l-spiro-1'"-piperidinium bromide is described. 2,7-
Insole, Joan Margaret
core  

A Protocol for the exo-Mono and exo,exo-Bis Functionalization of the Diazocine Ring of Tröger’s Base

, 2015
An efficient protocol has been developed for the exo-mono and exo,exo-bis functionalization of Tröger’s base in the benzylic 6 and 12 positions of the diazocine ring.
Ola F. Wendt (1282323), Sami Dawaigher (1456699), Kenneth Wärnmark (1296588), Michael Harmata (746967), Nagarajan Loganathan (1456702), Roger Mårtensson (1456708), Victor Snieckus (266177), Kristoffer Månsson (1456693), Erhad Ascic (1456696), Josep Artacho (1456705)   +9 more
core   +2 more sources

Synthesis of 1,5-Substituted Iminodibenzo[b,f][1,5]diazocine, an Analogue of Troger’s Base

, 2006
A method for the synthesis of 1,5-disubstituted iminodibenzo[b,f][1,5]diazocines is presented. The synthesis is achieved by the metal-free cyclization of 2-aminophenyl ketimines using the corresponding 2-aminophenyl ketone as the catalyst.
FABRIS, Fabrizio, ZONTA, CRISTIANO, BEZZE C, DE LUCCHI O, DE LUCCHI O., LINDEN A, FABRIS F, LINDEN A., ZONTA C, DE LUCCHI, Ottorino, LEGANZA A, Ottorino De Lucchi, Anthony Linden, Alessandro Leganza, Chiara Bezze, Cristiano Zonta, Fabrizio Fabris   +16 more
core   +1 more source