7375-70-4Relevant academic research and scientific papers
An amine template strategy to construct successive C-C bonds: Synthesis of benzo[: H] quinolines by a deaminative ring contraction cascade
McFadden, Timothy Patrick,Nwachukwu, Chideraa Iheanyi,Roberts, Andrew George
supporting information, p. 1379 - 1385 (2022/03/01)
We developed a convergent strategy to build, cyclize and excise nitrogen from tertiary amines for the synthesis of polyheterocyclic aromatics. Biaryl-linked azepine intermediates can undergo a deaminative ring contraction cascade reaction, excising nitrogen with the formation of an aromatic core. This strategy and deaminative ring contraction reaction are useful for the synthesis of benzo[h]quinolines. This journal is
Hypervalent organoantimony compounds 12-ethynyl-tetrahydrodibenz[c,f][1,5]azastibocines: Highly efficient new transmetallating agent for organic halides
Kakusawa, Naoki,Tobiyasu, Yoshinori,Yasuike, Shuji,Yamaguchi, Kentaro,Seki, Hiroko,Kurita, Jyoji
, p. 2953 - 2968 (2007/10/03)
Extremely efficient and high-speed ethynylation of acyl chlorides, aryl iodides and bromides was demonstrated by palladium-catalyzed cross-coupling reaction of N-t-butyl-Sb-ethynyl-5,6,7,12-tetrahydrodibenz[c,f][1,5]azastibocine under mild conditions. Optimization and generalization of the hypervalent antimony-mediated coupling reaction are presented in detail. Single-crystal X-ray analysis of the N-methyl-1,5-azastibocine revealed that the remarkable reactivity enhancement of the azastibocine was derived from elongation of the antimony-ethynyl carbon bond originated from Sb-N intramolecular non-bonding interaction.
TRANSANNULAR BOND FORMATION BETWEEN THE ANTIMONY AND THE NITROGEN ATOMS IN DIBENZAZASTIBOCINE SYSTEM. FORMATION OF X-Sb-X AND X-Sb-N(1+) HYPERVALENT BOND
Ohkata, Katsuo,Ohnishi, Masako,Akiba, Kin-ya
, p. 5401 - 5404 (2007/10/02)
6-Methyl-5,6,7,12-tetrahydro-12-p-tolyldibenzazastibocine (1) was prepared by means of one-pot reaction of di(o-bromobenzyl)methylamine (2), butyllithium, and antimony trichloride, followed by p-tolyllithium in 23percent yield.Halogenation of 1
