摘要:

Data The Synthesis, Reactivity, Structure, And Physicochemical Properties Of Vinyl Tellurides, Which Are Potential Monomers, Synthons, And Intermediates, Are Given In The Present Review.

ISSN:0196-1772    

DOI:10.1080/01961779108048762

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

摘要:

The aim of this review is to present reactions of carbon disulfide withC-nucleophiles which form carbon-carbon bonds. Compounds with an activated methyl or methylene group react, in the presence of a base, as carbanions with the electrophile carbon disulfide to give dithiocarboxylates which can be converted to ketene dithioacetals on treatment with excess alkylation reagent. Acidification affords dithiocarboxylic acids. Bases of low nucleophilicity because of steric hindrance and sodium hydride, respectively, are often used for the deprotonation steps.

ISSN:0196-1772    

DOI:10.1080/01961779108048763

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

摘要:

Syntheses of condensed tri-, tetra- and pentacyclic thiazolo[3,2-a]pyrimidine systems are described.

ISSN:0196-1772    

DOI:10.1080/01961779108048764

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

摘要:

This review describes synthetic pathways to mono-, di- and oligonucleotides modified in the phosphate group(s) by substitution of one or several oxygen atoms with sulfur. The known sulfur-modified phosphate groups are nucleoside 3′- and 5′-O-phosphorothioates, nucleoside thiodi- and triphosphates, nucleoside cyclic phosphorothioates, di- and oligonucleosideO,O-phosphorothioates, nucleoside 3′-S-phosphorothioates, nucleoside and oligonucleoside 5′-S-phosphorothioates, nucleosideO-phosphorodithioates, di- and oligonucleosideO,O-phosphorodithioates, di- and oligonucleosideO,S-phosphorodithioates, thiophosphortriesters, thiophosphoramidates, and methylphosphonothioates.

ISSN:0196-1772    

DOI:10.1080/01961779108048765

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

ISSN:0196-1772    

DOI:10.1080/01961779108048766

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

ISSN:0196-1772    

DOI:10.1080/01961779108048767

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

ISSN:0196-1772    

DOI:10.1080/01961779108048768

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

ISSN:0196-1772    

DOI:10.1080/01961779108048769

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

ISSN:0196-1772    

DOI:10.1080/01961779108048770

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

ISSN:0196-1772    

DOI:10.1080/01961779108048771

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor