| Autor: |
Reddy, Chada Raji, Patil, Amol D., Mohammed, Siddique Z. |
| Předmět: |
|
| Zdroj: |
Chemical Communications; 7/4/2020, Vol. 56 Issue 42, p7191-7194, 4p |
| Abstrakt: |
A novel alkyne-assisted annulation reaction of MBH-carbonates of propiolaldehydes with α-nitro/bromo ketones is reported, providing a facile synthesis of substituted 2H-pyrans in good yields. This reaction divulges the inimitable reactivity of the MBH-carbonates of propiolaldehydes as C3-synthons wherein the alkyne functionality promoted the reaction without participating in the oxa-[3+3] annulation. The obtained products, having alkyne and ester functionalities, allowed further annulations to generate diverse pyrano[3,4-c]pyran-1-ones. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
