Acylation of 1-methoxy-3-methyl-1-triazene 2-oxide

́yanov, O. A. Luk; Pokhvisneva, G. V.; Ternikova, T. V.; Smirnov, G. A.

doi:10.1007/s11172-015-0977-4

Cited by 6 publications

(6 citation statements)

References 4 publications

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“…However, owing to significant broadening of these bands, such a difference cannot be detected in the experimental spectra. From data reported in the literature, it is known that N , N ‐dinitroamines show characteristic absorption at

\overset{ν}{true}

=1250 and 1600–1630 cm −1 . Characteristic bands of the −O−N(O)=N−NO 2 fragment appear in nearly the same area (

\overset{ν}{true}

=1220–1235, 1290–1295, 1550–1555, and 1620 cm −1 ), which is in line with computational data for isomers of 1 a .…”

Section: Resultsmentioning

confidence: 99%

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Synthesis and Structure of N,N‐Dinitroamidoborane Complexes

Shitov

Tartakovsky

Golovanov

et al. 2017

Chemistry An Asian Journal

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A general approach to the synthesis of borohydride complexes containing one or two dinitroamide fragments has been suggested. Based on a smooth substitution of halide in haloborane or dibromoborane complexes with N,N-dinitroamide salts, this method provides various N,N-dinitroamidoboranes complexes in good yields and in analytically pure form. By means of spectroscopic and computational methods, it was demonstrated that dinitroamidoborane complexes could form as both B,N- and B,O-isomers, which did not interconvert at ambient temperature.

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\overset{ν}{true}

=1250 and 1600–1630 cm −1 . Characteristic bands of the −O−N(O)=N−NO 2 fragment appear in nearly the same area (

\overset{ν}{true}

=1220–1235, 1290–1295, 1550–1555, and 1620 cm −1 ), which is in line with computational data for isomers of 1 a .…”

Section: Resultsmentioning

confidence: 99%

“…The resulting solution was diluted with water and the amount of [N(NO 2 ) 2 ] − anion was determined spectrophotometrically. Yield: 74 % ( λ max =284 nm, ϵ =5700).…”

Section: Methodsmentioning

confidence: 99%

Synthesis and Structure of N,N‐Dinitroamidoborane Complexes

Shitov

Tartakovsky

Golovanov

et al. 2017

Chemistry An Asian Journal

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“…In the 1990ies it was briefly mentioned, that 2,2,2‐trinitroethyl carbamate ( 2 ) could be synthesized by the reaction of 2,2,2‐trinitroethanol and carbamoyl chloride 8. However, the synthesis of 2 via the chloroformate 1 and aqueous ammonia in dichloromethane is the more preferred route of choice (Scheme ).…”

Section: Resultsmentioning

confidence: 99%

“…(Ref. 8 92–93 °C), 169 °C (onset dec.). IR : $\tilde{\nu}$ = 3447 (w), 3352 (w), 3302 (w), 2962 (m), 1729 (m), 1590 (s), 1441 (w), 1399 (m), 1367 (w), 1325 (m), 1300 (m), 1248 (w), 1167 (w), 1138 (w), 1105 (m), 1027 (w), 910 (w), 873 (w), 858 (w), 804 (m), 784 (m), 772 (m), 741 (w), 673 (w), 646 (w), 606 (w), 546 (m), 527 (m) cm –1 .…”

Section: Methodsmentioning

confidence: 99%

Die Ostsee atmet auf

Naumann

Nausch

2014

Chemie in nserer Zeit

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Phytase is one of the most important feed additive enzymes for monogastric animal, because it hydrolyzes the indigestible phytate in the cereal‐based feedstock to release phosphate as an essential nutrient. To understand its molecular machinery, the three‐dimensional structures of various types of phytases and complexes have been studied extensively. For commercial applications, important properties such as higher catalytic efficiency and higher thermostability are desired. Since a phytase with both beneficial characteristics is hardly found in nature, various protein engineering strategies are popular in modifying the existing enzymes with enhanced performance. In this review, the up‐to‐date status of phytase structural and engineering studies is summarized. In addition, structural perspectives of some engineered phytases with improved properties are also provided. These results broaden the understanding of phytases and will be important for phytase applications in the future.

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“…18 One of the current trends in the chemistry of exogenous NО donors 19 is the synthesis of hybrid molecules 20 that may combine the ability to release NO with other types of biological activity. [21][22][23][24][25][26][27][28] Of particular interest among such compounds is a fairly rare type of heteronuclear hybrid molecules [29][30] consisting of a five-membered aromatic heterocycle linked to a N-nitropyrazole core.…”

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confidence: 99%