Ultrasonically Assisted Regioselective Nitration of Aromatic Compounds in Presence of Certain Group V and VI Metal Salts

• 作者: Kamatala Chinna Rajanna Kancharla Rajendar Reddy Kusampally Uppalaiah Marri Venkateswarlu Muddam Bhooshan Mukka Satish Kumar Sariah Sana
• 来源期刊: 绿色与可持续化学(英文)
• 学科: 化学
• 关键词: Ultrasonically ASSISTED REGIOSELECTIVE NITRATION GROUP V and VI Metal SALTS Reduction in Reaction Times
• 年，卷（期）: 2012,（3）
• 页码范围: 97-111
• 页数: 15页
• 分类号: O6

摘要

Ultrasonically assisted nitration reactions (USANR) with anilides, moderately activated and non-activated aromatic compounds underwent smoothly and afforded good yields of products with high regio selectivity. Observed longer reaction times (6 - 8 hrs.) in metal catalyzed reactions reduced to (1 - 2 hrs.) under sonication. When ortho position is blocked para derivatives are obtained, and ortho nitro products are obtained when para position is blocked. In case of USANR of aromatic carbonyl and related compounds the effect of sonication is much more effective. The reactions could be completed only in few minutes.