[PDF] Top 20 3 Methylbenzo[1,2 c:5,4 c′]dichromen 6(8H) one
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3 Methylbenzo[1,2 c:5,4 c′]dichromen 6(8H) one
... molecules C, B, E and G, and D, A, F and H. Molecules A and F are linked via C—H O hydrogen ...of C—H contacts present involving all of the ... See full document
33
1 Benzoyl 6 methyl 3 methylsulfanyl 6,7 dihydro 1H pyrano[4,3 c]pyrazol 4 one
... g, 1 mmol) to an absolute ethanol solution (30 ml) containing 3-[bis(methylsulfanyl)methylene]dihydro-6-methyl-3H-pyran-2,4-di- one ...a 1:5 mixture of ethyl acetate and ... See full document
11
1 (4 Methoxyphenyl) 2 (6 methyl 2 nitro 3 pyridyloxy)propan 1 one
... aromatic rings, but with different substituents. No signi®cant differences were found in the bond distances and angles of the two molecules, except that, in the case of (III), keto atom O4 is 0.201 (5) AÊ out of ... See full document
8
3 Hydroxy 6 methyl 2 [4 (3 trifluoromethylphenyl)piperazin 1 ylmethyl] 4H pyran 4 one
... formaldehyde. 2-Chloromethyl-5-hydroxy-4H-pyran-4- one (cholorokojic acid) was synthesized as described by Ellis et ...of 5-hydroxy-2- methyl-4H-pyran-4-one ... See full document
9
(2E) 1 (6 Chloro 2 methyl 4 phenylquinolin 3 yl) 3 (4 chlorophenyl)prop 2 en 1 one
... C19 0.0473 (10) 0.0616 (12) 0.0645 (12) −0.0061 (9) −0.0003 (9) −0.0182 (10) C20 0.0565 (11) 0.0612 (12) 0.0596 (12) −0.0132 (9) −0.0025 (9) −0.0176 (10) C21 0.0698 (13) 0.0630 (13) 0.0652 (13) −0.0134 (10) 0.0016 (10) ... See full document
12
1 Methyl spiro[2 3′]oxindole spiro[3 2′′]5′′,6′′ dihydroimidazo[2′′,1′′ b]thiazol 3′′ one 4 (2 benzo[1,3]dioxol 5 yl)pyrrolidine
... + 2] cycloaddition of azomethine ylide, derived from isatin and sarcosine by a decarboxylative route, and 2-benzo[1,3]dioxol-5-ylmethylene-5,6-dihydro-imidazo- ...planar 2-oxindole ... See full document
8
3 [4 (2 Chlorophenyl)piperazinomethyl] 5 methyl 1 benzoxazolin 2(3H) one
... To obtain information about the stereochemistry of the molecule and to con®rm the assigned structure, an X-ray analysis of (I) was undertaken. It was found that the phenyl group contains a Cl atom in the ortho position, ... See full document
7
r 2,c 6 Bis(4 chlorophenyl) t 3 isopropyl 1 nitrosopiperidin 4 one
... C21 0.0407 (10) 0.0282 (9) 0.0322 (9) 0.0130 (8) 0.0139 (8) 0.0038 (7) C22 0.0481 (11) 0.0347 (10) 0.0328 (10) 0.0133 (9) 0.0101 (8) 0.0022 (8) C23 0.0489 (12) 0.0308 (10) 0.0425 (11) 0.0083 (9) 0.0125 (9) −0.0034 (8) ... See full document
9
r 2,c 6 Bis(p tolyl) t 3,t 5 dimethyltetrahydropyran 4 one
... The title compound was obtained by the condensation of pentan-3- one and p-tolualdehyde in a 1:2 molar ratio in 95% ethanol, as reported in the literature (Baliah & Mangalam, 1978). ... See full document
9
5 Acetyl 4 (3 hydroxyphenyl) 6 methyl 1,2,3,4 tetrahydropyrimidin 2 one–tris(hydroxymethyl)ammonium chloride (2/1)
... via C—H O hydrogen bonds, forming a three-dimensional ...further C—H O hydrogen bonds and C—H interactions present in the three-dimensional framework ... See full document
13
Crystal structure of methyl 1 allyl 4 methyl 1H benzo[c][1,2]thiazine 3 carboxylate 2,2 dioxide
... the 4-hydroxy analogue of the title compound, viz. methyl 1-allyl- 4-hydroxy-1H-benzo[c][1,2]thiazine-3-carboxylate 2,2-dioxide (MINJAW; Shishkina et ... See full document
8
r 2,c 6 Bis(2 chlorophenyl) t 3,t 5 dimethyl 1 nitrosopiperidin 4 one oxime
... t-3,t -5-Dimethyl-r-2,c-6-bis(o-chlorophenyl)piperidin-4-one (50 mmol) and sodium acetate trihydrate (150 mmol) were dissolved in boiling ethanol, and hydroxylamine ... See full document
8
C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
... least 1 ms between enabling the external oscillator and checking ...and C modes typically require no startup ...C8051F340/ 1/2/3 devices can use the 48 MHz Clock Multiplier output as ... See full document
276
4 (4 Fluorophenyl) 2 methyl 3 (1 oxy 4 pyridyl)isoxazol 5(2H) one
... Several research groups have undertaken studies in which the imidazole ring was replaced by other 5- or 6- membered heterocycles (Laufer & Wagner, 2002; De Laszlo et al. , 1998; Laufer et al. , 2006; ... See full document
9
2 Methyl 4 phenyl 2 (trimethylsilyloxy) 3,4 dihydro 2H,5H pyrano[3,2 c][1]benzopyran 5 one
... from 4-hydroxycoumarin, we have prepared the title compound, (I), which is obtained from the cyclo- addition reaction between coumarin quinone methide and an excess amount of ... See full document
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SYNTHESIS AND CHARACTERIZATION OF 3 [(5 (2 NITROPHENYL) 1, 3, 4 OXADIAZOL 2 YL) METHYL AMINO] 2 METHYL QUINAZOLIN 4(3H) ONE
... table 2 shows bands at 3413.70cm -1 , 3154.50cm -1 , 1601.50cm -1 , ...to 2 o amine, aromatic C-H (stretch), Imine (C=N), C-O-C, C-NO ... See full document
5
1 (6 Chloro 1 methyl 1H imidazo[4,5 c]pyridin 4 yl) 3 (2 chlorophenyl)urea
... C14 0.0315 (11) 0.0536 (13) 0.0450 (12) −0.0006 (10) 0.0074 (10) −0.0022 (10) C15 0.0378 (11) 0.0415 (11) 0.0365 (11) 0.0041 (9) 0.0119 (9) −0.0026 (9) C16 0.0363 (12) 0.0457 (12) 0.0363 (11) −0.0043 (9) 0.0108 (9) ... See full document
8
Crystal structure of 2 methylamino 4 (6 methyl 4 oxo 4H chromen 3 yl) 3 nitropyrano[3,2 c]chromen 5(4H) one with an unknown solvate
... to one another with a dihedral angle of 85.59 (6) ...the methyl group deviates from the benzene ring (C16—C22) by ...structure, ... See full document
10
3 Cyano 4 [2 (4 methoxyphenyl)ethenyl] 6 methyl 2H 1 benzopyran 2 one
... A mixture of 3-cyano-4,6-dimethyl-2H-1-benzopyran-2-one (0.01 mol) and 4-methoxy benzaldehyde (0.01 mol) were dissolved in chloroform (75–80 ml) and a few drops of piperidine (8–10 ... See full document
8
r 2,c 6 Bis(4 chlorophenyl) t 3,t 5 dimethyl 1 nitrosopiperidin 4 one oxime
... Cl1 0.1248 (6) 0.0479 (4) 0.0941 (5) 0.0274 (3) −0.0148 (4) −0.0275 (3) Cl2 0.0723 (4) 0.0936 (5) 0.0634 (4) −0.0014 (3) 0.0287 (3) 0.0047 ... See full document
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