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Did you mean squaric acid diethyl ester (15 results)?
Molecular structure, infrared spectrum, and photochemistry of squaric acid dimethyl ester in solid argon.
Breda S, Reva I, Lapinski L, Fausto R. Breda S, et al. J Phys Chem A. 2006 Sep 28;110(38):11034-45. doi: 10.1021/jp0632485. J Phys Chem A. 2006. PMID: 16986836
Squaric acid dimethyl ester (C(6)O(4)H(6); 3,4-dimethoxycyclobut-3-ene-1,2-dione; DCD) was studied by matrix isolation infrared spectroscopy and by density functional theory (B3LYP) and ab initio (MP2) calculations with the 6-31++G(d,p) and 6-311++G(d,
Squaric acid dimethyl ester (C(6)O(4)H(6); 3,4-dimethoxycyclobut-3-ene-1,2-dione; DCD) was studied by matrix iso
Conjugation of carbohydrates to proteins using di(triethylene glycol monomethyl ether) squaric acid ester revisited.
Xu P, Trinh MN, Kováč P. Xu P, et al. Carbohydr Res. 2018 Feb 1;456:24-29. doi: 10.1016/j.carres.2017.10.012. Epub 2017 Nov 7. Carbohydr Res. 2018. PMID: 29247910 Free PMC article.
Properties of di(triethylene glycol monomethyl ether) squarate relevant to conjugation of carbohydrates to proteins have been reinvestigated and compared with those of dimethyl squarate. It is concluded that the commercially available, crystalline dimethyl squarate …
Properties of di(triethylene glycol monomethyl ether) squarate relevant to conjugation of carbohydrates to proteins have been reinvestigated …
Squaric acid N-hydroxylamides: synthesis, structure, and properties of vinylogous hydroxamic acid analogues.
Lim NC, Morton MD, Jenkins HA, Brückner C. Lim NC, et al. J Org Chem. 2003 Nov 28;68(24):9233-41. doi: 10.1021/jo035175g. J Org Chem. 2003. PMID: 14629141
The synthesis of squaric acid N-hydroxylamide esters 5 and amides 6 from dimethyl squarate 2a is described. ...The resonance structures of the derivatives rationalize their spectroscopic data, chemical reactivity, and iron(III) binding properties. Sing …
The synthesis of squaric acid N-hydroxylamide esters 5 and amides 6 from dimethyl squarate 2a is described. ...T …
Preparation of glycoconjugates by dialkyl squarate chemistry revisited.
Hou SJ, Saksena R, Kovác P. Hou SJ, et al. Carbohydr Res. 2008 Feb 4;343(2):196-210. doi: 10.1016/j.carres.2007.10.015. Epub 2007 Oct 26. Carbohydr Res. 2008. PMID: 18048016 Free PMC article.
The methyl 6-hydroxyhexanoyl glycoside of lactose was treated with each of 1,2-diaminoethane or hydrazine hydrate, and the corresponding amino amide 4 and acyl hydrazide 13, were treated with each of squaric acid dimethyl, diethyl, dibutyl, and didecyl est
The methyl 6-hydroxyhexanoyl glycoside of lactose was treated with each of 1,2-diaminoethane or hydrazine hydrate, and the corresponding ami …
A new series of glycopeptide antibiotics incorporating a squaric acid moiety. Synthesis, structural and antibacterial studies.
Sztaricskai F, Batta G, Herczegh P, Balázs A, Jeko J, Roth E, Szabó PT, Kardos S, Rozgonyi F, Boda Z. Sztaricskai F, et al. J Antibiot (Tokyo). 2006 Sep;59(9):564-82. doi: 10.1038/ja.2006.77. J Antibiot (Tokyo). 2006. PMID: 17136889
The aglycones of the antibiotics eremomycin, vancomycin and ristocetin (3, 4 and 6, respectively) were prepared by deglycosidation of the parent antibiotics with hydrogen fluoride, and complete assignation of their 1H, 13C and 15N spectra was performed. The squaric acid
The aglycones of the antibiotics eremomycin, vancomycin and ristocetin (3, 4 and 6, respectively) were prepared by deglycosidation of the pa …
Design and synthesis of [2-(8,9-dioxo-2,6-diazabicyclo[5.2.0]non-1(7)-en-2-yl)-ethyl]phosphonic acid (EAA-090), a potent N-methyl-D-aspartate antagonist, via the use of 3-cyclobutene-1,2-dione as an achiral alpha-amino acid bioisostere.
Kinney WA, Abou-Gharbia M, Garrison DT, Schmid J, Kowal DM, Bramlett DR, Miller TL, Tasse RP, Zaleska MM, Moyer JA. Kinney WA, et al. J Med Chem. 1998 Jan 15;41(2):236-46. doi: 10.1021/jm970504g. J Med Chem. 1998. PMID: 9457246
Replacement of the phosphonic acid group by either a carboxylic acid or a tetrazole group was unproductive. The potent bicyclic NMDA antagonists were synthesized efficiently by virture of their achiral nature and the ease of vinylgous amide formation from squaric
Replacement of the phosphonic acid group by either a carboxylic acid or a tetrazole group was unproductive. The potent bicycli …