Highly efficient construction of chiral dispirocyclic oxindole/thiobutyrolactam/chromanone complexes through Michael/cyclization cascade reactions with a rosin-based squaramide catalyst
- Resource Type
- Article
- Source
- In
Tetrahedron 5 July 2018 74(27):3734-3741 - Subject
- Language
- ISSN
- 0040-4020