[PDF] Top 20 2 Acetyl­phenyl­boronic acid monohydrate

... Fig. 2, there is no intra- molecular hydrogen bonding in (I), in contrast to the situation in the structure of anhydrous 2-formylphenylboronic acid (Scouten et ... See full document

... The most important close contacts are hydrogen bonds between the acid group and the water molecule. The hydrogen bonding between these groups forms an uncommon 10- membered ring (Table 1 and Fig. 2). The ... See full document

... The synthesis of 1,2-functionalized ferrocenes is a striking topic in ferrocene chemistry (Schaarschmidt & Lang, 2013; Korb et al., 2014a) and is mostly realized via ortho-directed metalation and subsequent reaction ... See full document

... The B—C [1.5907 (16) A ˚ ] and B—O [1.3514 (14), 1.3641 (14) A ˚ ] bonds in the title compound (I) are within the expected range typically observed for boronic acids (Madura et al., 2014; Lulin´ski et al., 2007; ... See full document

... with 2, 3, 4, 6- tetra-O-acetyl- β -D-glucopyranosyl bromide (glucosyl donar) in dry dioxane gave corresponding 1-N- (2, 3, 4, 6-tetra-O-acetyl- β -D-glucopyranosyl)-2-((1, 5-diphenyl)- ... See full document

... coordination around the S atom is distorted tetrahedral. The aromatic rings are oriented at a dihedral angle of 74.18 (17) . Intramolecular C—H O hydrogen bonds result in the formation of non-planar five- and ... See full document

... To a mixture of 4-acetyl-5-methyl-2,3-dioxo-2,3-dihydrofuran (1.54 g, 10 mmol) and dry ether (30 ml), phenylhydrazine (1.08 g, 10 mmol) in dry ether (10 ml) were added dropwise, and the reaction mixture was ... See full document

... 7-phenyl-7-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dien-1-yl)heptanoic acid] crystallized with trometamol [systematic name: 2-amino-2-(hydroxyme´th- yl)propane-1,3-diol] to form a monohydrated ... See full document

... The structure of (I) (Fig. 1) is composed of strongly hydrogen-bonded clusters involving all O atoms of the acid and water of solvation (Fig. 2); details of the hydrogen- bonding geometry are given in Table ... See full document

... In the title compound (I), shown in Fig. 1, the aromatic ring is inclined at angles of 9.93 (8)° & 6.36 (7)° with respect to pyrazole and thiadiazole rings. The pyrazole and thiadiazole rings are oriented at dihedral ... See full document

... The title compound, (I), is an aromatic amino-acid deriv- ative with a free carboxylic acid group. In order to use this compound as a dipeptide mimetic in the synthesis of helical peptides, the amine ... See full document

... In conclusion, we have demonstrated that dimeric benzoborox- oles are selective antimycobacterial agents and are lethal to Mtb via a different mode of action from the monomeric benzo- boroxole analogue ( 1 ). Further ... See full document

... C2 0.077 (3) 0.0425 (18) 0.0462 (19) 0.0114 (17) −0.0147 (17) −0.0077 (15) C3 0.059 (2) 0.062 (2) 0.0473 (19) 0.0106 (17) −0.0213 (16) −0.0103 (16) C4 0.0482 (19) 0.0444 (18) 0.0505 (18) 0.0008 (14) −0.0093 ... See full document

... smooth, simple, septate, subhyaline or brown, subcylindrical or occasionally strongly inflated, 30-50 µm long, 2-4 µm thick. Conidia born at the tip of conidiophores oblong, pyriform or obovate to subglobose, ... See full document

... in not being able to monitor the conversion from boronic acid to boronate ester. To further optimize our polymerization parameters, we measured the effect of time on the molecular weight of ... See full document

... around the [0 1/2 0] axis (Table 1, Fig. 2). These helical chains are further assembled through offset π-π stacking interactions between the aromatic rings of neigboring chains (centroid to centroid ... See full document

... 1,3,5-trisubstituted 2-pyrazolines 3a-g, presence of polar group on 3-position of 3-phenyl ring reduced the activity as observed with compound 3e whereas, no such effect was observed when it is in ... See full document

... 2014). 2-(1,2,3,4-Tetrahydronaphthalen-1- ylidene)-4-phenyl-hydrazinecarbothioamide was dissolved in THF (2 mmol/40 ml) with stirring maintained for 30 min until the solution turned ... See full document

... the acid can form transition metal complexes that are assembled via N—H O hydrogen bonds into polymeric tapes and that these complexes might be analogues of polymeric coordination compounds formed by the dianion ... See full document

... the phenyl ring had little effect on the ...aza-carbacepham 2 and apply the same conditions to synthesize p-methoxyphenyl aza-carbacepham 3 and m-fluorophenyl aza- carbacepham ... See full document