Synthesis of ethyl (2E,5S)-7-{[tert-butyl(dimethyl)silyloxy]-methyl}-5-methylocta-2,7-dienoate, a universal C7–C14 building block for the preparation of amphidinolides B, D, G, H, and L

2015 ◽  
Vol 51 (7) ◽  
pp. 920-930 ◽  
Author(s):  
I. V. Mineeva
Keyword(s):  
Building Block ◽  
Tert Butyl

Azaborolyl-Komplexe, 25 Das (1-tert-Butyl-2-methyl-1 H-1,2-azaborolyl)cobalt-Fragment (AbCo) als Synthesebaustein / Azaborolyl Complexes, 25. The (1-tert-Butyl-2-methyl-1 H-1,2-azaborolyl)cobalt Fragment (AbCo) as Building Block in Synthesis

1990 ◽  
Vol 45 (9) ◽  
pp. 1235-1242 ◽  
Author(s):  
Günter Schmid ◽  
Abdel K. Boutrid ◽  
Eva-Maria Kreuzer
Keyword(s):  
Mass Spectrometry ◽  
Ir Spectroscopy ◽  
Building Block ◽  
Molecular Structures ◽  
Dinuclear Complex ◽  
Tetranuclear Cluster ◽  
Tert Butyl ◽  
Trinuclear Cluster ◽  
Mononuclear Complexes

The (1-tert-butyl-2-methyl-1 H-1,2-azaborolyl)cobalt fragment (AbCo), available from AbCo(C2H4)2 (1), serves as a building block in a series of complexes and clusters. The mononuclear complexes AbCo(C2H4)PMe3 (2), AbCo(PMe3)2 (3), AbCo(C2H4)P(OMe)3 (4), AbCo(P(OMe)3)2 (5), AbCo(C2H4)CO (6), and AbCo(CO)2 (7) are easily prepared from 1. AbCo(CpH) (8) is formed from 1 and CpCo(C2H4)2 together with AbCp3Co4H4 (9). The tetranuclear cluster Ab4Co4H4 (10) results, if 1 is warmed to 80 °C without a solvent. Ab3(CO)3Co3 (11) is available by a co-thermolysis of 1 and 7. Thermolysis of 6 leads to the trinuclear cluster Ab3(CO)2Co3 (12). Photolytical degradation of 7 forms the dinuclear complex Ab2(CO)3Co2 (13). Mass spectrometry, IR spectroscopy, and NMR investigations serve to elucidate the molecular structures.

scholarly journals Crystal structure of bis(acetonitrile-κN)(4,4′-di-tert-butyl-2,2′-bipyridine-κ2 N,N′)platinum(II) bis(tetrafluoridoborate) packing as head-to-head dimers

2018 ◽  
Vol 74 (5) ◽  
pp. 695-697
Author(s):  
Chris Joseph ◽  
Vladimir N. Nesterov ◽  
Bradley W. Smucker
Keyword(s):  
Crystal Structure ◽  
Building Block ◽  
Π Interactions ◽  
Tert Butyl ◽  
Close Proximity

The crystal structure of a platinum(II) supramolecular building block, [Pt(dbbpy)(NCCH3)2](BF4)2 (dbbpy = 4,4′-di-tert-butyl-2,2′-bipyridine, C18H24N2) is an example of a rare head-to-head dimer, even with the bulky tert-butyl groups of the bipyridine. This packing motif still enables significant π–π interactions between two pyridyl groups, and may result from the close proximity of the tetrafluoridoborate ions to the platinum(II) complexes, resulting in intramolecular H...F distances between 2.156 and 2.573 Å.

N-(2′,7′-Di-tert-butyl-9,9′-spirobifluoren-2-yl)aniline

2006 ◽  
Vol 62 (4) ◽  
pp. o1358-o1359
Author(s):  
Ping-Hsin Huang ◽  
Jiun-Yi Shen ◽  
Tai-Hsiang Huang ◽  
Yuh-Sheng Wen ◽  
Kwa-Nan Lu
Keyword(s):  
Building Block ◽  
Title Compound ◽  
Light Emitting ◽  
Tert Butyl ◽  
Compound C ◽  
Hole Transporting ◽  
Widespread Interest

The title compound, C39H37N, is a precursor for the production of hole-transporting and/or emitting materials. The widespread interest in high Tg materials for optical light-emitting device (OLED) applications led us to design the syntheses of the desired compounds using the 9,9′-spirobifluorene unit as a building block.

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