Tert butyl
(2SR,3SR,4RS) tert Butyl 2,3 dihydroxy 4 (tert butoxycarbonyl)aminohexanoate
... vacuum to yield the crude product. Chromatography on silica gel (eluant ethyl acetate±pentane, 4/1) afforded 68 mg (0.2 mmol) of the major diastereomer 4b, 16 mg (0.05 mmol) of the minor diastereomer 5b and 20 mg (0.06 ...
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N (tert Butyl) S (4 methylphenyl)thiohydroxylamine
... Sulfenamides, RN(H)–SR′ (R, R′ = alkyl or aryl), are compounds with simple structure yet remarkably rich chemistry. Their photolysis or chemical oxidation results in the formation of free radicals, some of them are ...
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2,6 Di tert butyl 4 (phenyliminomethyl)phenol
... A mixture of 3,5-di-tert-butyl-4-hydroxybenzaldehyde (11.7 g, 0.05 mol) and aniline (15.4 g, 0.05 mol) was stirred in refluxing toluene (100 ml) and the imine (15.4 g) was obtained in nearly quantitative ...
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2,6 Di tert butyl 4 (methoxymethyl)phenol
... The 4-bromomethyl-2,6-di- tert -butyl-phenol (7.15 g) was synthesized from 2,6-di- tert -butyl-4-methylphenol (5.5 g, 0.025 mol) and equivalent NBS (Rieker et al. , 1968) in a yield of 96%. ...
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1,3 Di tert butyl 6 (trimethylsilylethynyl)fulvene
... In our studies of the preparation and thermal behaviour of hydrocarbons containing a linearly conjugated 1,3-hexadien-5- yne subsystem, we were interested in 6-ethynylfulvene and its derivatives, because these compounds ...
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1,3 Di tert butyl 6 (phenylethynyl)fulvene
... For our studies of the chemical behaviour of new acetylenes containing a 1,3-hexadien-5-yne subsystem (Eshdat et al., 2002) we required a sample of 1,3-di-tert-butyl-6-phenyl- ethynyl-fulvene (3), which was ...
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3,5 Di tert butyl 2 hydroxybenzoic acid
... 3,5-Di-tert-butyl-2-hydroxybenzoic acid (TBS), (I), is an industrially important charge-control agent (CCA) of the negative type used in electrophotography, either embedded in toners or mixed with toners ...
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Tetrakis(tert butyl 3 oxobutanoato)zirconium(IV)
... packing is essentially by van der Waals interactions. There are two intramolecular short contacts of the CÐH O type involving the tert-butyl atoms C6 and C7, and the chelate ring atom O2, with C O distances ...
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Diethyl (4 tert butyl 1,3 thiazol 2 ylaminomethylene)malonate
... The structure of (I) comprises an essentially planar mol- ecule, except for the tert-butyl group, with resolved disorder of the aminomethylene atoms (Fig. 1). All the molecules in the unit cell lie ...
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4 tert Butyl 2,6 bis(piperidinomethyl)phenol
... length for the phenyl ring is 1.392 AÊ. In the tert-butyl system, C24 is in a (ÿ)synclinal position with respect to the C4ÐC5 bond. There is a an OÐH N intramolecular hydrogen bond [H21 N15 = 1.76 (2) AÊ, ...
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Crystal structure of 5 tert butyl 10,15,20 triphenylporphyrin
... Unsymmetrically meso-substituted porphyrins are of interest for a wide range of potential applications including non-linear optics (Notaras et al., 2007; Zawadzka et al., 2009), photo- dynamic therapy (Wiehe et al., ...
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tert Butyl 2 (dihydroxyboryl)pyrrole 1 carboxylate
... acid groups are essentially coplanar with the pyrrole ring and the boronic acid group has an exo-endo conformation. The exo-oriented OH is engaged in an intramolecular O—H O interaction, while the endo-oriented one is ...
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2,6 Di tert butyl 4 (isopropylaminomethyl)phenol
... 3,5-Di-tert-butyl-4-hydroxybenzaldehyde (11.71 g, 0.05 mol) and isopropylamine (2.95 g, 0.05 mol) were mixed in toluene (150 ml) with stirring at 303 K for 0.5 h and then heated to reflux for 4 h. The ...
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3,5 Di tert butyl 2 hydroxybenzaldehyde
... A local pseudo-inversion centre is located between the two crystallographically independent molecules, and is broken by the disorder of the tert-butyl group involving atom C23. It is, in fact, the major ...
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4 tert Butyl γ chlorobutyrophenone
... The title compound, 4-tert-butyl-γ-chloro-butyrophenone (or 4′-tert-butyl-4-chlorobutyrophenone), (I), belongs to the chemical class of butyrophenones, which are used as tranquillizers and act ...
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(R) N {2 tert Butyl 2 [(R) tert butylsulfonamido]ethylidene} tert butanesulfonamide
... R-1-Amino-1-tert-butyl-N,N′-bis[(R)- N-tert-butanesulfinyl]-2-iminoethane was prepared from bis-[(R)-N-tert-butane- sulfinyl]ethanediimine (264 mg, 1.00 mmol). The solution of ...
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3,5 Di tert butyl 2 hydroxybenzaldehyde
... 3,5-Di-tert-butyl-2-hydroxybenzaldehyde, (I), with two bulky alkyl groups, is a very useful intermediate in organic synthesis. For example, some chiral salen-type Schiff base complexes, which can be easily ...
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Crystal structure of tert butyl N phenylcarbonitrilium tetrachloridoaluminate
... A search in the Cambridge Structural Database (Version 5.35, last update May 2014; Groom & Allen, 2014) showed five structures of nitrilium salts (Gjøystdal & Rømming, 1977; MacLaughlin et al., 1983; Casey et al. ...
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2 tert Butyl 4,6 dinitrophenol
... 4-tert- butyl-3-methoxy-2,6-dinitrotoluene (De Ridder et ...2,6-di-tert- butyl-4-nitrophenol, with simple organic bases, we character- ized the structure of the title compound and report it ...
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tert Butyl N (thiophen 2 yl)carbamate
... The title compound was prepared by a typical Curtius Rearrangement. Thiophene-2-carbonyl azide (270 mg; 1.77 mmol) was reacted with 1.0 equivalent of tert-butyl alcohol (131 mg; 1.77 mmol) and dissolved in ...
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