Derivatives of Piperazine. II. Utilization in Identification of Fatty Acids

Pollard, C. B.; Adelson, David E.; Bain, J. P.

doi:10.1021/ja01323a032

Cited by 16 publications

(8 citation statements)

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“…Les bis(n-alcanoates) de piperazinium ont et6 obtenus en suivant la methode decrite par Pollard, Adelson & Bain (1934). En bref, il suffit de melanger une solution de piperazine dans le propanol-2 5. la quantite correspondante de l'acide aussi en solution dans le propanol-2.…”

Section: Synthdsesunclassified

Etude des composés à chaînes aliphatiques. I. Synthèse et caractérisation cristallographique des bis(n-alcanoates) de pipérazinium, 2[C_xH_2x−1O₂⁻].[C₄H₁₂N₂²⁺]

Brisse¹,

Denault²,

Sangin³

1982

J Appl Cryst

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Crystal data for the series of piperazinium bis(n‐alkanoates) of the type 2[CxH2x− 1O2−] [C4H12N22+] for x = 1 to 16 are presented. Most of these compounds have triclinic unit cells whose dimensions, obtained from single‐crystal work, have been used to index their powder diagrams. The a ( = 5.718 Å) and b ( = 7.481 Å) cell dimensions remain nearly constant while the c dimension and the volume of the unit cell increase linearly with x, the number of carbon atoms in the alkanoate anion. Presumably the aliphatic sequence in the alkanoate anion adopts the fully extended conformation and lies in the bc plane and nearly along the c direction.

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Section: Synthdsesunclassified

Etude des composés à chaînes aliphatiques. I. Synthèse et caractérisation cristallographique des bis(n-alcanoates) de pipérazinium, 2[C_xH_2x−1O₂⁻].[C₄H₁₂N₂²⁺]

Brisse¹,

Denault²,

Sangin³

1982

J Appl Cryst

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“…2) from lactic acid charges obtained by fermentation is described. Because no information is available about this product in specialized literature [55], some results of its characterization as a pure product are also presented.…”

Section: Introductionmentioning

confidence: 99%

Formation of aminium lactates in lactic acid fermentation preparation and characterization of 1,4‐piperazinium‐(L,L)‐dilactate obtained fromL(+)‐lactic acid (part I)

Kamm¹,

Kamm²,

Richter³

1997

Acta Biotechnologica

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The potential for the production of 1.4-piperazinium-(L, L)-dilactate from L(+)-lactic acid preparations obtained by fermentation was studied. Piperazinium dilactate was found to be a very suitable source material for poly(1actic acid) production. In a novel polymerization process, the intermediate dilactide was directly formed in the salt melt at a moderate temperature. High-performance cultivation of Lucrobocillus pumcawi on a glucose-MRS medium was carried out using high-viability inocula. After the cell mass had been removed from the fermentation broth by centrifugation and/or ultrafiltration, the lactic acid solution was concentrated to 45% [wlw] by ; 1 two-stage electrodialysis process. Two methods of preparing 1,4-piperazinium dilactate were developed: the first from the medium-concentrated lactic acid ( 4 5 4 ) and the second from a highly-concentrated lactic acid (85%) obtained by evaporation from the first one. Because there were no physical data on 1,4-piperazinium-(l, L)-dilactate in specialized literature, the pure product was characterized according to its solubility characteristics. melting point and spectroscopic analysis.

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“…La synth+se des bis(n-alcanoates) de pip+razinium suit la m&hode d+crite par Pollard, Adelson & Bain (1934). Recristallisation des sels dans le propanol-2.…”

unclassified

Etude des composés à chaînes aliphatiques. 3. Structure du bis(n-heptanoate) de pipérazinium, C4H12N22+.2C7H13O2−

Sangin¹,

Brisse²

1984

Acta Crystallogr C

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Derivatives of Piperazine. II. Utilization in Identification of Fatty Acids

Cited by 16 publications

References 0 publications

Etude des composés à chaînes aliphatiques. I. Synthèse et caractérisation cristallographique des bis(n-alcanoates) de pipérazinium, 2[C_xH_2x−1O₂⁻].[C₄H₁₂N₂²⁺]

Etude des composés à chaînes aliphatiques. I. Synthèse et caractérisation cristallographique des bis(n-alcanoates) de pipérazinium, 2[C_xH_2x−1O₂⁻].[C₄H₁₂N₂²⁺]

Formation of aminium lactates in lactic acid fermentation preparation and characterization of 1,4‐piperazinium‐(L,L)‐dilactate obtained fromL(+)‐lactic acid (part I)

Etude des composés à chaînes aliphatiques. 3. Structure du bis(n-heptanoate) de pipérazinium, C4H12N22+.2C7H13O2−

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Derivatives of Piperazine. II. Utilization in Identification of Fatty Acids

Cited by 16 publications

References 0 publications

Etude des composés à chaînes aliphatiques. I. Synthèse et caractérisation cristallographique des bis(n-alcanoates) de pipérazinium, 2[CxH2x−1O2−].[C4H12N22+]

Etude des composés à chaînes aliphatiques. I. Synthèse et caractérisation cristallographique des bis(n-alcanoates) de pipérazinium, 2[CxH2x−1O2−].[C4H12N22+]

Formation of aminium lactates in lactic acid fermentation preparation and characterization of 1,4‐piperazinium‐(L,L)‐dilactate obtained fromL(+)‐lactic acid (part I)

Etude des composés à chaînes aliphatiques. 3. Structure du bis(n-heptanoate) de pipérazinium, C4H12N22+.2C7H13O2−

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Etude des composés à chaînes aliphatiques. I. Synthèse et caractérisation cristallographique des bis(n-alcanoates) de pipérazinium, 2[C_xH_2x−1O₂⁻].[C₄H₁₂N₂²⁺]

Etude des composés à chaînes aliphatiques. I. Synthèse et caractérisation cristallographique des bis(n-alcanoates) de pipérazinium, 2[C_xH_2x−1O₂⁻].[C₄H₁₂N₂²⁺]