The Synthesis of 1- (3', 4', 5'-trimethoxyphenyl) -6, 7-diethoxyisoquinoline

Microwave assisted synthesis of [4, 5-e] [1, 3, 4]thia- diazin-7-yl] hydrazine Derivatives

New pyrimido [4, 5-e] [1, 3, 4]thia- diazin-7-yl] hydrazines were synthesized via the cyclocondensation of alkyl-2-phenylhydrazinecarbodithioates as a binucleophile with 5-bromo-2,4-dichloro-6-methylpyrimidine as a bielectrophile , and replacement of C-7 chloro atom by hydrazine in ethanol as the solvent . This method has advantages over methods currently described in the literature for the con...

Synthesis of new polyurethanes based on 5, 6, 7, 8 – tetrabromo – 2, 3 – dihydro – 1, 4 – phthalazine dione

In this work, 5,6,7,8-Tetrabromo-2,3-dihydro-2,3-bis(2-hydroxyethyl)phthalazine-1,4-dione is synthesized by the reaction of 5,6,7,8-tetrabromo-2,3-dihydrophthalazine-1,4-dione with 2-bromoethanol in the presence of triethylamine. The obtained monomer was polymerized with different diisocyanates, including hexamethylenediisocyanate (HMDI), tolylene-2,4-diisocyanate (TDI), isophoronediisocyanate ...

Number 2 - 1 3 - 1 4 - 1 5 - 1 5 - 2 5 - 3 5 - 4 5 - 5 5 - 6 5 - 7 5 - 8 6 - 1 •

A decentralized failure detection and isolation (FDI) methodology, which is robust with respect to model uncertainties and noise, is presented. Redundancy metrics are developed, and optimization problems are posed for the choices of robust parity relations. Closed-form solutions for some special failure cases are given. Connections are drawn with other disciplines, and the use of the metrics to...

1 1 2 3 4 5 6 7 8

’ 0 ’ 1 ’ 2 ’ 3 ’ 4 ’ 5 ’ 6 ’ 7 ’ 20

Based on the frequent requests for help that I have received in the past months from users who want to configure TEX or LTEX for typesetting in several languages, it seems that this sort of information is not adequately covered in the documentation available to most do-it-yourself users. This tutorial is intended to give basic information on this topic. The related subject of hyphenation patter...