Synth�se et propri�t�s photochromiques de 1, 3-dihydrospiro[2H-indole-2,3?-[3H]pyrimido[5,4-f][1,4]benzoxazines] et de 1,3-dihydrospiro[2H-indole-2,7?-[7H]thiazolo[5,4-f][1,4]benzoxazines]
Synthesis and Photochrmic Characteristics of 1,3-Dihydrospiro[2H-indole-2,3′-[3H-]pyrimido[5,4-f][1,4]benzoxazines] and 1,3-Dihydrospiro[2H-indole-2,7′[7H]thiazolo[5,4-f][1,4]benzoxazines]
的合成和特性Photochrmic 1,3-二氢螺[2H-吲哚-2,3' - [3H-]嘧啶并[5,4-f]的[1,4]苯并恶嗪]和1,3-二氢螺[2 ħ -吲哚-2,7'[7 H ]噻唑洛[5,4- f ] [1,4]苯并恶嗪]
Indolino-spiroquinoxalino oxazine photochromatic compounds, methods for
申请人:Essilor International (Compagnie Generale d'Optique)
公开号:US05139707A1
公开(公告)日:1992-08-18
The new photochromic compounds of the invention have the formula of a indolino-spiro-oxazine comprising an indolinic part and an oxazine part wherein the oxanine part comprises an unsaturated 6-atoms bi-aza heterocycle of the pyrimidine type included in a nucleus of the quinazoline part. Preferred photochromic compounds are those showing the following developed formula (II) wherein R.sub.1 is a methyl or isopropyl group R.sub.2 and R.sub.3 are methyl groups R.sub.4 is H or --OCH.sub.3 ##STR1##
Synthesis and anti-oomycete activity of novel quinazolin- and benzothiazol-6-yloxyacetamides: Potent aza-analogs and five-ring analogs of quinoline fungicides
Novel quinazolin-and benzothiazol-6-yloxyacetamides show excellent in vivo activity against the three economically most important Oomycete pathogens Phytophthora infestans, Plasmopara viticola and Pythium ultimum. They are polar analogs of known quinolin-6-yloxyacetamides, which are not active against the soil-borne damping-off disease caused by Pythium ultimum. The Bogert quinazoline synthesis, an almost forgotten heterocyclization technique, proved to be highly useful for the concise construction of required quinazolin-6-ol building blocks. (C) 2015 Elsevier Ltd. All rights reserved.
972. Analogues of 8-hydroxyquinoline having additional cyclic nitrogen atoms. Part I. Preparative