To determine whether microbial chemosensors can be used to find new or better biocatalysts, we constructed Escherichia coli hosts that recognize the product of a biocatalytic conversion through the transcriptional activator NahR and respond by expression of a lacZ or tetA reporter gene. Equipped with a benzaldehyde dehydrogenase (XylC from Pseudomonas putida), the lacZ-based host responded to t...

The title compound, C(13)H(12)N(2)O(2)S, formed by Schiff base condensation of benzaldehyde with sulfanilamide, crystallizes as discrete mol-ecular species linked by N-H⋯N and N-H⋯O hydrogen bonds between the sulfamide nitro-gen H atoms and the aza-methine N and one sulfamide O atom, respectively, forming a two-dimensional array in the bc plane. The aza-methine group is rotated slightly out of ...

Flavanone was synthesized through the Claisen–Schmidt condensation between benzaldehyde and acetophenone and subsequent intramolecular Michael addition over aminopropyl-functionalized SBA-15 materials. The catalysts with well-ordered hexagonally arranged mesopores were synthesized by one-pot co-condensation of tetraethoxysilane and aminopropyltriethoxysilane using amphiphilic block copolymer as...

The photolysis of methyldeoxybenzoin was carried out in aqueous SDS solution in the earth’s field and in a field of 1500 G. Benzaldehyde and styrene are produced by disproportionation of benzoyl-set-phenethyl geminate radical pair. Both benzaldehyde and the recovered methyldeoxybenzoin are enriched in “C. These results represent the first direct evident that both disproportionation and recombin...

Novel procedures have been developed to condense benzaldehyde effectively with beta-amino acid amides to cyclic benzyl aminals. Double carbamate protection of the heterocycle resulted in fully protected chiral beta-alanine derivatives. These serve as universal precursors for the asymmetric synthesis of functionalised beta(2)-amino acids containing acid-labile protected side chains. Diastereosel...

In this communication, we report on the use of ultrafast electron diffraction to determine structural dynamics of excited states and reaction products of isolated aromatic carbonyls, acetophenone and benzaldehyde. For a 266 nm excitation, a bifurcation of pathways is structurally resolved, one leading to the formation of the triplet state (quinoid structure) and another to chemical products: fo...

The addition of organic residues to soil is an option to control some soil-borne diseases. Benzaldehyde and powders of kudzu (Pueraria lobata), velvetbean (Mucuna deeringiana), and pine-bark (Pinus elliottii and P. taeda) added to soil could reduce certain soilborne diseases. This study evaluated the effects of benzaldehyde and the dried powders of kudzu, velvetbean, and pine-bark as soil amend...

Abstarct: A series of some new pyrimidine derivatives were synthesized via the reaction of ethyl cyanoacetate with thiourea and the appropriate aldehydes namely 2-methyl-benzaldehyde and 2-methoxy-benzaldehyde to give 1a,b. Compounds 1a,b were chlorinated to give the chloro compounds 2a,b then condensation of 2a,b via different reagents gave compounds 3-5. Compound 4b reacted with acetic anhydr...

Background: Benzaldehyde dehydrogenase (BZDH) is encoded by the xylC that catalyzes the conversion of benzaldehyde into benzoate in many pathways such as toluene degradation. Objectives: In this study, the xylC gene from Rhodococcus ruber UKMP-5M was expressed in Escherichia coli, purified, and characterized.Materials and Methods: The xylC was amplified and cloned in E. coli. The re...