We report on the THz generation and optical characterizations such as index of refraction, absorption coefficients of indigenously grown, potentially NLO active N-benzyl-2-methyl-4-nitroaniline (BNA) single crystals grown from four different solvents such as N, N dimethylformamide (DMF), Methano...
3-Chloro-1-phenyl-2-pyrazoline and 3-chloro-1-phenyl-1,4,5,6-tetrahydropyridazine were coupled with aryl boronic acids in good yields under microwave heating conditions (140 °C, 5 min).
Novel α-fluoroalkoxyacetophenones were synthesized by addition of the readily available 2,2-dimethoxy-2-phenylethanol to fluoroolefins. α-Bromination yielded α-bromo-α-fluoroalkoxyacetophenones, which on treatment with thioureas or thioamides gave thiazoles with fluoroalkoxy groups at the 5′...
Two series of novel mono-ionizable calix[4]arene-benzocrown-6 ligands in 1,3-alternate conformations are synthesized. In one series, the proton-ionizable group (PIG) is attached to the para position of one aromatic ring in the calixarene framework, thereby positioning it over the polyether ring ...
We have measured the second order rate constants for the uncatalyzed and o-iodosobenzoate catalyzed hydrolysis of p-nitrophenyldiphenyl phosphate in microemulsions containing the surfactant cetyltrimethyl ammonium bromide, the cosurfactants 1-alkyl-2-pyrrolidinones, and the oils hexadecane, tolu...
Publisher SummaryThis chapter presents the density of solid for organic compounds in tabular form. The tabulation is arranged by carbon number such as C, C2, and C3 to provide ease of use in quickly locating the data by using the chemical formula. The compound name and chemical abstracts registr...
Addition of phenylmethanethiols (benzylthiols), including (2-furyl)methanethiol, to butadiynes in potassium hydroxide/dimethyl sulfoxide affords the corresponding 2,5-diaryl-3-(phenylmethyl)thiophenes.
(2S,5S)-2,5-Bis(phenylmethyl)-1,4-diazabicyclo [2.2.2]octane [(2S, 5S)-bis(phenylmethyl)-DABCO] (6), a potentially useful chiral catalyst for asymmetric syntheses, was synthesized from a chiral piperazine.
Marijuana’s effects in humans are most often reported as intoxicating or therapeutic; yet, some humans report dysphoria or other negative affect. To evaluate whether differences in endocannabinoid levels might account for this variability, the present study examined whether sensitivity to canna...
The electron from potassium anion of K−, K+(15-crown-5)2 (1) is initially transferred to the aromatic ring of phenyloxirane and (phenylmethyl)oxirane. The oxirane ring is then opened exclusively in the α-position. Two dimeric products, i.e. dipotassium 2,3-diphenylbutane-1,4-dioxide and dipotas...
A series of 3-urea-1-(phenylmethyl)-pyridones was discovered as novel EP3 antagonists via high-throughput screening and subsequent optimization. The synthesis, structure–activity relationships, and optimization of the initial hit that resulted in potent and selective EP3 receptor antagonists su...
A toxicologic and dermatologic review of carbonic acid, methyl phenylmethyl ester when used as a fragrance ingredient is presented. Carbonic acid, methyl phenylmethyl ester is a member of the fragrance structural group Aryl Alkyl Alcohol Simple Acid Esters (AAASAE). The AAASAE fragrance ingredie...
The flow behavior of 4-heptyloxy-4′-cyanobiphenyl (7OCB) monolayer is studied during compression and expansion by Maxwell displacement current (MDC) and second harmonic generation (SHG) measurement. It is found that in-plane molecular flow induced reorientation of 7OCB monolayer in L2 and L2′ ...
Infrared (IR) spectral changes during heating at the rate of 0.2°C min−1 were measured for three kinds of solid state 4-heptyloxy-4′-cyanobiphenyl (7OCB), i.e., square-plate and needle crystals, and commercially available powder. Frequencies and intensities of CN stretching vibrations of the p...
Amino acid appended azobenzene hybrid has been synthesized (Fmoc-al-az) and its electronic absorbance and fluorescence spectra were recorded at room temperature in a series of polar and non-polar solvents. The ground state and excited state dipole moments were calculated using solvatochromic shi...
14N NQR frequencies have been measured at two temperatures in solid 4,4′-azoxyanisole (PAA) and 4,4′-bis(heptyloxy)azoxybenzene (HpAB) by the nuclear quadrupole double resonance techniques based on multiple frequency sweeps and two-frequency irradiation. Two sets of three 14N NQR lines have be...
A series of 2-n-alkyl-4-ethyl-5-[6-methyl-6-(2H-tetrazol-5-yl)heptyloxy]phenols were prepared and shown to be potent leukotriene B4 (LTB4) receptor antagonists. They bound to the human neutrophil and guinea pig lung LTB4 receptors with high affinity. Each compound was also shown to be effective ...
A series of 5-alkoxy-1-arylcarbonyl-2-pyrrolidinones (1–27) were prepared by condensation of arylcarbonyl chlorides with 5-alkoxy-2 pyrrolidinones in the presence of butyl lithium in tetrahydrofuran. Alkylation of these intermediates with substituted benzyl bromides or chlorides, under solid/li...
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Preparation and spectroscopic characterization are reported for monooxo molybdenum(VI) complexes, MoO(cat)L, where L2− = dianion of N-4-diethylaminosalicylidene-N′-4-nitrobenzoyl hydrazine and cat2− = catecholate (Cat2−), 4-methylcatecholate (Mecat2−), 3,5-di-tert-butylcatecholate (DTBcat2−), o...
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