Synthesis of benzannulated spiroketals with gold-catalyzed cycloisomerization/spiroketalization cascade†,Organic Chemistry Frontiers

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Synthesis of benzannulated spiroketals with gold-catalyzed cycloisomerization/spiroketalization cascade†
Organic Chemistry Frontiers ( IF 4.6 ) Pub Date : 2017-12-25 00:00:00 , DOI: 10.1039/c7qo01005b
Qi Teng _{1,

2,

3,

4,

5} , Jialin Qi _{1,

2,

3,

4,

5} , Ling Zhou _{6,

7,

8,

9} , Zhenghu Xu _{1,

2,

3,

4,

5} , Chen-Ho Tung _{1,

2,

3,

4,

5}

Affiliation

An unprecedented gold-catalyzed intramolecular cycloisomerization of alkynyl alcohol and intermolecular spiroketalization reaction with quinone monoimines has been successfully developed. By using this novel gold-catalyzed cascade, a variety of 5,5-benzannulated spiroketals were obtained from easily available starting materials under mild conditions.

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