Detail of "787-07-5"

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CAS Number:
787-07-5
Name:
1,4-Cyclohexanedicarboxylicacid, 2,5-dioxo-, 1,4-diethyl ester
Superlist Name:
Diethyl succinosuccinate
Molecular Structure:
Formula:
C₁₂H₁₆O₆
Molecular Weight:
256.25
Synonyms:
1,4-Cyclohexanedicarboxylicacid, 2,5-dioxo-, diethyl ester (6CI,7CI,8CI,9CI);2,5-Bis(ethoxycarbonyl)-1,4-cyclohexanedione;2,5-Dicarbethoxy-1,4-cyclohexanedione;2,5-Dioxo-1,4-cyclohexanedicarboxylicacid diethyl ester;Diethyl 1,4-cyclohexanedione-2,5-dicarboxylate;Diethyl1,4-dioxo-2,5-cyclohexanedicarboxylate;Diethyl 2,5-dioxo-1,4-cyclohexanedicarboxylate;Diethyl succinosuccinate;Diethyl succinylsuccinate;NSC 1140;NSC 130894;Succinylsuccinic acid ethyl ester;
EINECS:
212-327-8
Density:
1.233 g/cm³
Melting Point:
127-129 °C
Boiling Point:
375.7 °C at 760 mmHg
Flash Point:
166.4 °C

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Indazolone derivatives: Indazolone derivatives. (Toyo Soda Mfg. Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 59215358 A2 5 Dec 1984 Showa, 3 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: ICM: C09B057-00. APPLICATION: JP 83-89157 23 May 1983. DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) Indazolone derivs. I (R = H, alkyl, alkoxyl, halo), useful as O sensors, were prepd. by condensation of lower alkyl succinylsuccinates and RC6H4NHNH2. Thus, Et succinylsuccinate [787-07-5] and phenylhydrazine [100-63-0] were refluxed in toluene in the presence of 36% HCl for 4 h to give white cryst. I (R = H) [96205-18-4], which turned purple on contact with O. I (R = H) was oxidized with chloranil to obtain II [96205-19-5], coloring PVC [9002-86-2] bright blue with excellent fastness to heat and light.

Studies on heterocyclic coloring matter: Studies on heterocyclic coloring matter. Part III. 7a,14a-Diaza-7,7a,14,14a-tetrahydroquino[2,3-b]acridine-7,14-diones (5,7a,12,14a-tetraaza-7,7a,14,14a-tetrahydropentacene-7,14-diones). Altiparmakian, Rodolf (Dyes Dep.-Dyes Chem. Res., Sandoz Ltd., Basel, Switz. 504-29-0 is the cas registry number. This chemical is also mentioned in this article.). Helv. Chim. Acta, 61(3), 1146-57 (English) 1978. CODEN: HCACAV. ISSN: 0018-019X. DOCUMENT TYPE: Journal CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) The title compds. (I, R = H, Cl, Me; R2 = H, Cl) are prepd. by reaction of 2-aminopyridine (II) [504-29-0] or deriv. with di-Et 2,5-dioxocyclohexane-1,4-dicarboxylate [787-07-5] to give 7a,14a-diaza-6,7,7a,13,14,14a-hexahydroquino[2,3-b]acridine-7-14-di one [52000-69-8] or deriv. followed by aromatization to the tetrahydro deriv. [52000-72-3]. Oxidn.In this study，504-29-0 is also used. of I with a mixt. of H2SO4 and HNO3 results in the formation of their resp. 6,13-quinones, also obtained from II or derivs. and di-Et 2,5-dichloro-1,4-benzoquinone-3,6-dicarboxylate [2490-58-6]. The chromophore of I is compared with the quinacridone chromophore. ..