1.5 to 2 MA
2 (1′,5′,5 Trimethyl 3,3′ bi 1H pyrazol 1 yl)ethanol
... 5.26 mmol) in THF (10 ml) cooled to 273 K. The mixture was stirred under reflux for 2 h. After cooling to 273 K, the excess hydride was destroyed by slow addition of water (0.2 ml), aqueous sodium hydroxide (15%, ...
6
5 Methoxyspiro[1 benzofuran 2(3H),2′ chroman]
... After 2 h, the reaction mixture was warmed to 273 K for 4 h then warmed to room temperature for another 2 ...(4 2 ml). The combined organic extracts were washed with brine (5 ml), dried over ...
6
Risk Assessment of Transnational Oil Investment Using a Fuzzy Comprehensive Evaluation Method Haitao Ma 1, 2, *, Zhan Sun 1, 2, 3 and Chuanglin Fang 1, 2, 3
... investment risk assessment. The limited research that has been carried out in this area is usually focused on two areas, including assessing the risks of oil investment from an economic perspective, encompassing issues ...
15
3 Phenyl 5 (2 thienyl) 2 pyrazoline 1 thioamide
... that 1-thiocarbamoyl-3,5-diphenyl-2- pyrazolines (Bilgin et ...analogues, 1-N-substituted thiocarbamoyl-3-phenyl-5-thienyl-2-pyrazol- ines (Go¨khan et ...
7
5,6 Dimethyl 2 (5 methylthiophen 2 yl) 1 [(5 methylthiophen 2 yl)methyl] 1H benzimidazole
... the 5-methylthio- phen-2-ylmethyl substituent. The 5,6-dimethyl-2-(5-methyl- thiophen-2-yl)benzimidazole system is rotationally disordered about the two imidazole N atoms as ...
13
4 Amino 5 fluoropyrimidin 2(1H) one–2 amino 5 fluoropyrimidin 4(3H) one–water (1/1/1)
... (Fig. 1), was grown by evaporation of a 50% aqueous solution of ethanol saturated with 5-fluoro- ...of 5-fluoro- cytosine (Louis et ...of 5- fluorocytosine was assumed to have been present in ...
6
Crystal structure of benzyl 3 oxo 2 oxa 5 azabicyclo[2 2 1]heptane 5 carboxylate
... (I) was prepared in exactly the same manner as described by (Lombardo et al. 2012). To a solution of Z-Hyp-OH (3.0 g, 11.3 mmol) and triphenylphosphine (3.5 g, 13.3 mmol) in dry THF (50 mL) at 0 °C, was added DEAD (40% ...
10
1 Acetyl 3 ferrocenyl 5 (2 nitrophenyl) 2 pyrazoline
... Pyrazolines are widely studied as five-membered heterocyclic compounds. Condensation of nitrogen-containing binucleophilic agents with α-β unsaturated ketones is one of the most suitable synthetic pathways for ...
13
5 Cyclohexyl 3 (2 fluorophenylsulfonyl) 2 methyl 1 benzofuran
... 3-Chloroperoxybenzoic acid (77%, 448 mg, 2.0 mmol) was added in small portions to a stirred solution of 5-cyclo- hexyl-3-(2-fluorophenylsulfanyl)-2-methyl-1-benzofuran (306 mg, 0.9 mmol) in ...
9
1 Acetyl 5 (2 methoxyphenyl) 3 (2 methoxystyryl) 2 pyrazoline
... This difference may be attributed to the nature of the substituents and their consequent effect in inhibiting or promoting the resonance effect across the diene. A compar- ison of the in¯uence of the 2- and ...
8
1 {[5 Fluoro 2 (trifluoromethyl)phenyl]iminomethyl} 2 naphthol
... The molecular structure of compound (I) (Fig. 1) contains one intramolecular N—H O hydrogen bond (Table 1). The C8 N1 bond length is 1.296 (6) A ˚ , indicative of a C N double bond. The C—F, C—O and C—C ...
7
5 tert Butylperoxy 5 (oxiran 2 yl) 1 (prop 2 ynyl)pyrrolidin 2 one
... The action of tert-butyl hydroperoxide and tin(IV) chloride upon allylic alcohols containing a lactam ring leads mainly to epoxy alkyl peroxides with high diastereoselection. The structure of the title compound, (I), is ...
6
1′,5 Dinitro 2′ phenyl 2′,3′,5′,6′,7′,7a' hexahydrospiro[indoline 3,3′ 1′H pyrrolizin] 2 one
... from 5-nitroisatin and proline by a decarboxylative route, and ...(Fig. 1) is similar to reported compounds (Usha et ...(Fig. 2) via N—H···O intermolecular interactions and crystal packing is ...
9
3 (2 Bromophenylsulfonyl) 5 cyclohexyl 2 methyl 1 benzofuran
... 3-Chloroperoxybenzoic acid (77%, 426 mg, 1.9 mmol) was added in small portions to a stirred solution of 3-(2-bromo- phenylsulfanyl)-5-cyclohexyl-2-methyl-1-benzofuran (361 mg, 0.9 mmol) in ...
9
Python Docs 2 5 2 (1) pdf
... cluding without limitation the federal copyright law, and, to the extent such U.S. federal law does not apply, by the law of the Commonwealth of Virginia, excluding Virginia’s conflict of law provisions. Notwithstand- ...
144
5 Cyclohexyl 2 (2 fluorophenyl) 3 methylsulfinyl 1 benzofuran
... a chair conformation. The 2-fluorobenzene ring makes a dihedral angle of 38.68 (6) with the mean plane [r.m.s. deviation = 0.018 (2) A ˚ ] of the benzofuran fragment. In the crystal, molecules are linked by ...
8
Crystal structures of the two isomeric hydrogen bonded cocrystals 2 chloro 4 nitrobenzoic acid–5 nitroquinoline (1/1) and 5 chloro 2 nitrobenzoic acid–5 nitroquinoline (1/1)
... compound, the acid and base molecules are held together by an O—H N hydrogen bond. In the crystal of (I), the hydrogen-bonded acid–base units are linked by a C—H O hydrogen bond, forming a tape structure along [120]. The ...
15
1 {5 [(E) (2 Fluorophenyl)diazenyl] 2 hydroxyphenyl}ethanone
... of 2-fluoroaniline ...below 5 °C. The resulting mixture was stirred for 30 min in an ice bath. 2-Hydroxyacetophenone ...of 2-fluorobenzenediazonium chloride, prepared as described above, and ...
8
Evolution of Pliocene climate cyclicity at Hole 806B (5-2 Ma); oxygen isotope record
... It is a history of both a cooling trend, with superimposed ice-volume and climate fluctuations of Milankovitch type, as well as a shift in the pattern of oxygen isotope fluctuations afte[r] ...
15
(2S*) 2 Hydroxy 2 [(2S*,5R*) 5 (1 hydroxy 1 methylethyl)tetrahydrofuran 2 yl] 1 phenylethanone
... C1 0.0292 (13) 0.0453 (14) 0.0348 (13) −0.0003 (11) 0.0008 (9) −0.0016 (11) C2 0.0364 (13) 0.0527 (16) 0.0414 (14) −0.0028 (13) −0.0020 (11) −0.0047 (13) C3 0.0437 (17) 0.068 (2) 0.0415 (16) 0.0005 (16) −0.0060 ...
7