1785-52-0 Usage
Uses
6,11-Dihydroxy-5,12-naphthacenedione was used in the synthesis of a tetracene derivative, 5,6,11,12-tetrachlorotetracene. It was also used for the synthesis of (3Z,3′Z)-3,3′-(ethane-1,2-diylidene)bis[isobenzofuran-1(3H)-one]. It may be used for the following studies:Synthesis of self-assembled, chair-shaped dirhenium(I) macrocyclic compounds.Synthesis of half-sandwich Ir, Rh-based organometallic molecular boxes.As ligand for the synthesis of supramolecular coordination complexes (SCCs).
General Description
Crystallographic analysis of 6,11-dihydroxy-5,12-naphthacenedione has been reported. Study indicates the presence of (3Z,3′Z)-3,3′-(ethane-1,2-diylidene)bis[isobenzofuran-1(3H)-one] as impurity.
Check Digit Verification of cas no
The CAS Registry Mumber 1785-52-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,8 and 5 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1785-52:
(6*1)+(5*7)+(4*8)+(3*5)+(2*5)+(1*2)=100
100 % 10 = 0
So 1785-52-0 is a valid CAS Registry Number.
InChI:InChI=1/C18H10O4/c19-15-9-5-1-2-6-10(9)16(20)14-13(15)17(21)11-7-3-4-8-12(11)18(14)22/h1-8,19-20H
1785-52-0Relevant articles and documents
Synthesis, Rearrangement, and Hauser Annulation of 3-Isocyanophthalides
Mal, Dipakranjan,Ghosh, Ketaki,Chakraborty, Soumen
, p. 2473 - 2484 (2015/08/18)
3-Isocyanoisobenzofuran-1(3H)-ones (phthalides) were prepared in two steps from the corresponding phthalaldehydic acids. The 3-isocyanoisobenzofuran-1(3H)-ones are readily rearranged to the corresponding 3-cyanoisobenzofuran-1(3H)-ones using triflic anhyd
Direct access to 1,4-dihydroxyanthraquinones: The Hauser annulation reexamined with p-quinones
Mal, Dipakranjan,Ray, Sutapa,Sharma, Indrajeet
, p. 4981 - 4984 (2008/02/05)
(Chemical Equation Presented) 3-Phenylsulfanylphthalides (e.g. 8a) readily react with p-benzoquinones in the presence of LiOtBu in THF to furnish 1,4-dihydroxyanthraquinones in good yields and one-pot operations.
METAL TEMPLATE ORTHO-ACYLATION OF PHENOLS; A NEW GENERAL APPROACH TO ANTHRACYCLINONES
Sartori, Giovanni,Casnati, Giuseppe,Bigi, Franca,Robles, Pasquale
, p. 1533 - 1536 (2007/10/02)
Direct and mild synthesis of dihydroxyanthraquinones including 4-demethoxy-7-deoxydaunomycinone 8 from ortho-phthaloyl dichloride and hydroquinone derivatives is described.
