P-Hydroxynaphthalene

The synthesis of photochromic compounds from a diarylpropargyl alcohol and a di-P -hydroxynaphthalene (2,3- or 2,6- or 2,7-) yields a dipyran.35 Scheme 9 shows the preparation of a dipyran (21) from 2,6-dihydroxynaphthalene (20). The photochromic properties of these compounds are quite similar to those of a 3,3-diary 1-3/ -naphtho[2,l-A]pyran with an oxy-containing heterocycle fused to the naphtho... [Pg.122]

Hydroxynaphthalene. See P-Naphthol a-Hydroxynaphthalene. See 1-Naphthol P-Hydroxynaphthalene. See P-Naphthol 2-Hydroxy-1,4-naphthalenedione. See Lawsone... [Pg.2129]

CAS 135-19-3 EINECS/ELINCS 205-182-7 Synonyms Cl 37500 Cl azoic coupling component 1 2-Hydroxynaphthalene p-Hydroxynaphthalene Isonaphthol P-Monoxynaphthalene 2-Naphthalenol 2-Naphthol P-Naphthyl alcohol P-Naphthyl hydroxide... [Pg.2778]

Other Names 2-Naphthol p-Hydroxynaphthalene P-Naphthol P-Naphthyl alcohol 2-Hydroxynaphthalene Azogen Developer A Betanaphthol C.I. 37500 C.l. Azoic Coupling Component 1 C.I. Developer 5 Developer A Developer AMS Developer BN Developer NA Isonaphthol NSC 2044 NSC 5737 Naphthol B CA Index Name 2-Naphthalenol CAS Registry Number 135-19-3 Merck Index Number 6384 Chemical Structure... [Pg.245]

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