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・ Naphtali Daggett
・ Naphtali Friedman
・ Naphtali Hirsch Treves
・ Naphtali Hirz Wessely
・ Naphtali Keller
・ Naphtali Lau-Lavie
・ Naphtali Lewis
・ Naphtali Luccock
・ Naphtha
・ Naphtha flare
・ Naphtha launch
・ Naphthalen-1,8-diyl 1,3,2,4-dithiadiphosphetane 2,4-disulfide
・ Naphthalene
・ Naphthalene 1,2-dioxygenase
・ Naphthalenesulfonate
Naphthalenetetracarboxylic dianhydride
・ Naphthalocyanine
・ Naphthanthrone
・ Naphthenic acid
・ Naphthionic acid
・ Naphthoate synthase
・ Naphthoflavone
・ Naphthol
・ Naphthol Green B
・ Naphthol Red
・ Naphthol yellow S
・ Naphtholphthalein
・ Naphthomycin
・ Naphthomycin A
・ Naphthoquinone


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Naphthalenetetracarboxylic dianhydride : ウィキペディア英語版
Naphthalenetetracarboxylic dianhydride

Napthalenetetracarboxylic dianhydride is an organic compound related to naphthalene. The compound is a beige solid. NTDAs are most commonly used as a precursor to naphthalenediimides (NDIs), a family of compound with many different uses.〔Bhosale, S.; Jani, C.; Langford, S. "Chemistry of Naphthalene Diimides" Chem. Soc. Rev., 2008, 37, 331-342. 〕
==Synthesis and structure==

Naphthalene dianhydride is prepared by oxidation of pyrene. Typical oxidants are chromic acid and chlorine. The unsaturated tetrachloride hydrolyzes to enols that tautomerize to the bis-dione, which in turn can be oxidized to the tetracarboxylic acid.〔F. Röhrscheid "Carboxylic Acids, Aromatic" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2012. 〕


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