期刊论文详细信息
Bulletin of the Korean chemical society
Synthesis of High Refractive Spiroheterocyclic Derivatives Through Thioacetalization of Multi-Carbonyl Compounds
Jung Yun Do1  Ji-myoung Ye1  Muchchintala Maheswara1 
关键词: Spiro heterocycle;    High refractive index;    1;    3-Dithiolane;    Polyacrylate film;    Dispirocycle;   
DOI  :  
学科分类:化学(综合)
来源: Korean Chemical Society
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【 摘 要 】

Preparation of several new spirocyclic mercapto derivatives is described. Thiol protection on multi-carbonyl compounds allows of high sulfur content necessary to induce high refractive index. Condensation of 1,3- dimercapto-2-propanol and cyclohexanone followed by successive oxidation and thioacetalization affords a dispirocycle with four sulfurs. Selective S,S-protection of cyclohexane-1,4-dione is achieved with 1,3- dimercapto-2-propanol and 2,3-dimercapto-1-propanol to provide dispirocycles with four sulfurs. Olefineoxidation of norbornene gives a useful dialdehyde intermediate which is transformed to 1,3-dithiolane for a linearly-bound-cyclic molecule. Refractive index of linearly-bound-cycles was below 1.60 and dispirocycles exhibited high refractive index of 1.57-1.69.

【 授权许可】

Unknown   

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