ChemInform Abstract: A New Efficient Route to (.+-.)-Physostigmine (IVa) and (.+-.)-Physovenine (IVb) by Means of 5-exo Selective Aryl Radical Cyclization of O-Bromo-N-acryloylanilides (II).

ChemInform ◽  
2010 ◽  
Vol 31 (27) ◽  
pp. no-no
Author(s):  
Hiroyuki Ishibashi ◽  
Tetsuya Kobayashi ◽  
Noriko Machida ◽  
Osamu Tamura
Keyword(s):  
Radical Cyclization ◽  
Aryl Radical ◽  
Efficient Route

A New Efficient Route to (±)-Physostigmine and (±)-Physovenine by Means of 5-exo Selective Aryl Radical Cyclization of o-Bromo-N-acryloylanilides

Tetrahedron ◽  
2000 ◽  
Vol 56 (11) ◽  
pp. 1469-1473 ◽  
Author(s):  
Hiroyuki Ishibashi ◽  
Tetsuya Kobayashi ◽  
Noriko Machida ◽  
Osamu Tamura
Keyword(s):  
Radical Cyclization ◽  
Aryl Radical ◽  
Efficient Route

ChemInform Abstract: Studies on Lactams. Part 99. Fused Tricyclic β-Lactams via Intramolecular Aryl Radical Cyclization.

ChemInform ◽  
2010 ◽  
Vol 27 (24) ◽  
pp. no-no
Author(s):  
B. K. BANIK ◽  
G. V. SUBBARAJU ◽  
M. S. MANHAS ◽  
A. K. BOSE
Keyword(s):  
Radical Cyclization ◽  
Aryl Radical

Regiochemistry in Aryl Radical Cyclization onto Methylenecycloalkanes

2000 ◽  
Vol 65 (26) ◽  
pp. 9022-9027 ◽  
Author(s):  
Hiroyuki Ishibashi ◽  
Tetsuya Kobayashi ◽  
Sayaka Nakashima ◽  
Osamu Tamura
Keyword(s):  
Radical Cyclization ◽  
Aryl Radical

Aryl Radical Cyclization of Chiral 3-Allyl-2-(2-bromophenyl)-1,3-oxazolidines with Tributyltin Hydride

Heterocycles ◽  
2002 ◽  
Vol 58 (1) ◽  
pp. 431 ◽  
Author(s):  
Kimio Higashiyama ◽  
Takayasu Yamauchi ◽  
Jumpei Sugiyama
Keyword(s):  
Radical Cyclization ◽  
Aryl Radical ◽  
Tributyltin Hydride

scholarly journals Alcohol-Initiated Dediazoniation of Aryldiazonium Ions to Aryl Radicals: A Simple and Efficient Route to Arylboronates

2018 ◽  
Vol 42 (9) ◽  
pp. 481-485
Author(s):  
Xiulian Zhang ◽  
Zhicheng Zhang ◽  
Yongbin Xie ◽  
Yujie Jiang ◽  
Ruibo Xu ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Bond Formation ◽  
Single Electron ◽  
Single Electron Transfer ◽  
Aryl Radical ◽  
Radical Species ◽  
Aryl Radicals ◽  
Efficient Access ◽  
Efficient Route ◽  
Operational Simplicity

A simple and efficient access to arylboronates was achieved with methanol-initiated borylation of aryldiazonium salts. Reduction of aryldiazonium ions by single electron transfer from methanol affords aryl radical species, which undergo a subsequent C–B bond formation with bis(pinacolato)diboron. This highly practical borylation process, which can be carried out on the gram-scale, enjoys operational simplicity as well as mild and catalyst-free conditions.

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