𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Facile Reduction of Benzopyrones with Nickel Boride: A New Method for Synthesis of 2H-1-Benzopyran-4-ols.

✍ Scribed by Jitender M. Khurana; Sushma Chauhan

Publisher
John Wiley and Sons
Year
2010
Weight
28 KB
Volume
33
Category
Article
ISSN
0931-7597

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Nickel boride mediated reductive desulfu
Nickel boride mediated reductive desulfurization of 2-thioxo-4(3H)-quinazolinones: A new synthesis of quinazolin-4(3H)-ones and 2,3-dihydro-4(1H)-quinazolinones
✍ Jitender M. Khurana; Gagan Kukreja 📂 Article 📅 2003 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 23 KB 👁 1 views

## Abstract A novel one‐pot approach for the synthesis of aryl substituted quinazolin‐4(3__H__)‐ones and 2,3‐dihydro‐4(1__H__)‐quinazolinones has been reported based on the reductive desulfurization of 3‐aryl‐2‐thioxo‐4(3__H__)‐quinazolinones with nickel boride in dry methanol at ambient temperatur

Electron impact behaviour of trans-4-ben
Electron impact behaviour of trans-4-benzoylamino-2H-1-benzopyran-3-ols: Evidence for an oxygen migration with loss of a benzopyranone
✍ John M. Evans; Andrew J. Organ; Jonathan L. Sims 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 287 KB

## Abstract Certain abundant peaks in the electron impact mass spectra of a series of __trans__‐4‐benzoylamino‐2__H__‐1‐benzopyran‐3‐ols involve the formation of a substituted __N__‐alkylated benzonitrile ion by a mechanism involving migration of oxygen, in a postulated four‐centre skeletal rearran

A new convenient method for the synthesi
A new convenient method for the synthesis of 2H-1,4-benzoxazine derivatives from nitroketones via intramolecular reductive cyclization
✍ Meyoung Ju Joung; Jin Hee Ahn; Hoe Moon Kim; Nung Min Yoon; Kee Won Kim; Jae Hoo 📂 Article 📅 2002 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 56 KB

## Abstract Dedicated to Professor Herbert C. Brown on the occasion of his 90^th^ birthday. Potentially bioactive 2__H__‐1,4‐benzoxazine derivatives could be conveniently prepared in one step from the corresponding nitroketones using 10% palladium on carbon with triethylamine in the presence of hy