Theoretical and Experimental Study on the In-Plane SN2-Type Substitution Reaction of Haloalkenes with Inversion of Configuration at the sp2Carbon†

2004 ◽  
Vol 6 (14) ◽  
pp. 2461-2463 ◽  
Author(s):  
Kaori Ando ◽  
Mitsuru Kitamura ◽  
Kasei Miura ◽  
Koichi Narasaka
Keyword(s):  
Experimental Study ◽  
Substitution Reaction ◽  
Type Substitution

Enantioselectivity in the ritter-type substitution reaction via qpisulfonium ion: Retention of configuration

1991 ◽  
Vol 32 (34) ◽  
pp. 4317-4320 ◽  
Author(s):  
Akio Toshimitsu ◽  
Chitaru Hirosawa ◽  
Shigeo Tanimot
Keyword(s):  
Substitution Reaction ◽  
Type Substitution

scholarly journals Synthesis of Meso-Diarylaminocorroles via SNAr Reactions

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 642 ◽  
Author(s):  
Kento Ueta ◽  
Takayuki Tanaka ◽  
Atsuhiro Osuka
Keyword(s):  
Substitution Reaction ◽  
Oxidation Reaction ◽  
Emission Spectra ◽  
Silver Complex ◽  
Synthetic Chemistry ◽  
Visible Spectroscopy ◽  
Type Substitution

A corrole is a tetrapyrrolic macrocycle known as a ring-contracted porphyrinoid. Despite the progress of the synthetic chemistry of meso-aryl-substituted corroles since the early 2000s, meso-heteroatom-substituted corroles have been scarcely reported. Herein we report that the SNAr-type substitution reaction of a meso-chlorocorrole silver complex with diphenylamine or carbazole in the presence of NaH as a base produced meso-aminocorroles. The structures, ultraviolet–visible spectroscopy (UV/Vis), and emission spectra of these meso-aminocorroles were discussed. Furthermore, the oxidation reaction of a meso-diphenylaminocorrole was examined, which resulted in the formation of 10,10-diethoxyisocorrole.

Experimental study of clay mineral, greenschist, and low-pressure amphibole facies in the system Na2O-Al2O3-MgO-SiO2-H2O

1976 ◽  
Vol 40 (316) ◽  
pp. 875-886 ◽  
Author(s):  
Claude Triboulet
Keyword(s):  
Experimental Study ◽  
Clay Mineral ◽  
Low Pressure ◽  
Physical Conditions ◽  
Mineral Assemblages ◽  
Image Position ◽  
Type Substitution

SummaryCompositions concerning sodic amphiboles (glaucophane) in the system Na2O-Al2O3-MgO-SiO2-H2O have been studied at PH2O ≤ 3 kb, 380 °C < T < 700 °C. The study attempts to establish the mineral parageneses under these physical conditions as they define the clay mineral (saponite-hectorite smectite) and greenschist (chlorite-albite) facies. The occurence of sodic amphiboles is defined by compositional parameters. Glaucophane does not appear in the present investigation.The method of ‘reaction reversal’, i.e. using precrystallized mineral assemblages to form new ones, has been used to establish the three reactions: albite + chlorite → paragonite + saponite, paragonite + chlorite → saponite + cordierite, and saponite + paragonite → albite + cordierite. In general, the clay mineral → greenschist transformation is favoured by an increase in pressure in the system studied. The amphibole present is a sodic richterite with the type substitution

Boomerang-Type Substitution Reaction: Reactivity of Fullerene Epoxides and a Halofullerenol

2007 ◽  
Vol 2 (2) ◽  
pp. 290-300 ◽  
Author(s):  
Zhenshan Jia ◽  
Xiang Zhang ◽  
Gaihong Zhang ◽  
Shaohua Huang ◽  
Hao Fang ◽  
...  
Keyword(s):  
Substitution Reaction ◽  
Type Substitution
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