New Chalcogenotelluroxides from 5H,7H-Dibenzo[b,g][1,5]-tellurazocine and Related Hypervalent Azatelluranes. The First Molecular Structure of a Selenotelluroxide

Fujihara, Hisashi; Uehara, Toshinori; Furukawa, Naomichi

doi:10.1021/ja00128a041

Cited by 16 publications

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“…Subsequent reaction with BiCl 3 afforded 1b in 41-62% isolated yields (five runs in 0.007-0.23 mol scales were performed). This new procedure using cheaper starting material and reagent is probably applicable not only to bismuth compounds but also to related compounds of silicon [6,9], phosphorous [10], antimony[4a,9], sulfur [11], selenium [12], tellurium [13], and zirconium [14].…”

Section: Synthesesmentioning

confidence: 99%

“…1 H NMR (CDCl 3 , 499.1 MHz): d 1.20 (9H, s), 3.85 (4H, s), 6.96 (2H, dt, J = 1.5, 7.5), 7.04 (2H, dt, J = 1.0, 7.5), 7.13 (2H, dd, J = 7.5, 1.0), 7.52 (2H, dd, J = 7.5, 1.5). 13 From 3: To an Et 2 O (250 ml) solution of amine 3 (41.11 g, 100 mmol) was added a hexane solution of n BuLi (1.55 M, 128 ml, 198 mmol) at À30°C. The mixture was gradually warmed to room temperature over 3 h and then added to a mixture of BiCl 3 (31.76 g, 101 mmol) in Et 2 O (750 ml) at À78°C.…”

Section: Preparation Of T Bu(2-clc 6 H 4 Ch 2 ) 2 N (7)mentioning

confidence: 99%

“…13 127.16,127.23,127.51,128.85,129.74,139.01,139.50,149.13 (CCH 2 To a thf solution (100 ml) of 1b (5.01 g, 10.1 mmol) was added 3,4-(CH 2 O 2 )C 6 H 3 MgBr in toluene/thf mixture (1.0 M, 10.1 ml, 10.1 mmol) by syringe at À30°C…”

Section: Preparation Of [ T Bun(ch 2 C 6 H 4 ) 2 Biph] (1g)mentioning

confidence: 99%

“…) 13. C NMR (CDCl 3 , 125.4 MHz): d 27.50 (CH 3 ), 59.51 (C(CH 3 ) 3 ), 60.12 (CH 2 ), 127.53, 127.93, 129.94, 135.46, 150.91 (CCH 2 ), 177.57 (CBi).…”

mentioning

confidence: 99%

“…H NMR (CDCl 3 , 499.1 MHz): d 1.21 (9H, s), 3.84 (2H, d, J = 15), 4.17 (2H, d, J = 15), 5.97 (2H, s), 6.94 (1H, d, J = 7.6), 7.09-7.13 (2H, m), 7.20 (4H, d, J = 4.0), 7.28-7.30 (2H, m), 7.62 (2H, d, J = 7.3) 13. C NMR (CDCl 3 , 125.4 MHz): d 27.30 (C H 3 ), 56.55 (CH 2 N), 57.37 (C(CH 3 ) 3 ), 100.17 (CH 2 O), 110.52, 119.04, 127.25, 127.48, 128.88, 132.61, 138.93, 146.97 (COCH 2 ), 149.14 (CCH 2 N), 149.98 (COCH 2 ), 152.61 (CBi), 158.01 (CBi).…”

mentioning

confidence: 99%

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Synthesis and structure of 5,6,7,12-tetrahydrodibenz[c,f][1,5]azabismocines

Shimada

Tanaka

Suzuki

et al. 2004

Journal of Organometallic Chemistry

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Section: Synthesesmentioning

confidence: 99%

Section: Preparation Of T Bu(2-clc 6 H 4 Ch 2 ) 2 N (7)mentioning

confidence: 99%

Section: Preparation Of [ T Bun(ch 2 C 6 H 4 ) 2 Biph] (1g)mentioning

confidence: 99%

“…) 13. C NMR (CDCl 3 , 125.4 MHz): d 27.50 (CH 3 ), 59.51 (C(CH 3 ) 3 ), 60.12 (CH 2 ), 127.53, 127.93, 129.94, 135.46, 150.91 (CCH 2 ), 177.57 (CBi).…”

mentioning

confidence: 99%

mentioning

confidence: 99%

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Synthesis and structure of 5,6,7,12-tetrahydrodibenz[c,f][1,5]azabismocines

Shimada

Tanaka

Suzuki

et al. 2004

Journal of Organometallic Chemistry

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A Summary of Functional Groups Containing Selenium and Tellurium: A Catalog of the Many Groups that are Known and Some that are Not

Hack

Liebman

2013

Patai's Chemistry of Functional Groups

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In the current chapter we provide a catalog of functional groups containing the chalcogens selenium and tellurium where by functional group we mean the central atom, Se or Te, and its local arrangement of atoms bonded to it by single or multiple bonds (its neighborhood). We will do so by cataloging examples of compounds containing the groups. The atoms that define the local neighborhood are limited here to H, C, N, the chalcogens O, S, Se, Te, and the halogens F, Cl, Br and I. As such we avoid Se‐ and Te‐bonding to metals and metalloids and so we will ignore all salts, and we also ignore all groups with formal charges. However arbitrarily, we did include complexes involving species wherein, with appropriate bond‐shifting, we can draw the compound of interest without any formal charges. We have also avoided mention of free radicals and other species with unpaired electrons. All of the groups were explicitly chosen, and have at least one carbon attached to the selenium or tellurium. For each group we generally give one compound as an example (admittedly our choice of name is often unsystematic), a reference to the primary literature (again chosen unsystematically), and the CAS RN for the example compound (when available). Where there is no example we will generally explicitly say so, occasionally with due annotation as NO CAS RN or “no compounds identified” to encourage their study.

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NMR of Organoselenium and Organotellurium Compounds

Panda

Singh

2012

Patai's Chemistry of Functional Groups

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This chapter gives a systematic account of and surveys the available data on 77 Se and 125 Te NMR spectra of organochalcogen compounds such as chacogenols, mono and dichalcogenides, chalcogenolates, tetra and hexa substituted chalcogen compounds, chalcogenyl halides, chalcogen‐containing heterocycles and macrocycles, chalcogen‐oxygen/nitrogen compounds, etc. The review is based on the literature from 1985 to 2011 and includes 780 references. The 77 Se/ 125 Te NMR spectra of organochalcogen compounds reveal expansive chemical shifts (δ Se /δ Te ) leading to sharp sensitivity of these nuclei (Se/Te) to their environment such as solvent, temperature, molecular geometry, ligand backbone, oxidation state, chelate ring size, steric strain, etc. This is well illustrated by the advantageous use of this spectroscopy in the successful determination of the solution state structure of several organochalcogen compounds. It is noted that the 125 Te and 77 Se chemical shifts of a large number of structurally similar organotellurium and selenium compounds show linear relationship.

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New Chalcogenotelluroxides from 5H,7H-Dibenzo[b,g][1,5]-tellurazocine and Related Hypervalent Azatelluranes. The First Molecular Structure of a Selenotelluroxide

Cited by 16 publications

References 0 publications

Synthesis and structure of 5,6,7,12-tetrahydrodibenz[c,f][1,5]azabismocines

Synthesis and structure of 5,6,7,12-tetrahydrodibenz[c,f][1,5]azabismocines

A Summary of Functional Groups Containing Selenium and Tellurium: A Catalog of the Many Groups that are Known and Some that are Not

NMR of Organoselenium and Organotellurium Compounds

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