{"id":6112,"date":"2020-10-13T12:50:21","date_gmt":"2020-10-13T07:20:21","guid":{"rendered":"http:\/\/astan.lk\/al_virtualclassroom\/?p=6112"},"modified":"2020-10-13T12:51:37","modified_gmt":"2020-10-13T07:21:37","slug":"the-characteristic-reactions-of-acid-derivatives","status":"publish","type":"post","link":"https:\/\/astan.lk\/al_virtualclassroom\/the-characteristic-reactions-of-acid-derivatives\/","title":{"rendered":"Acid derivatives"},"content":{"rendered":"<h3>Reactions of acid chlorides<\/h3>\n<p><strong>(i) Reaction with sodium hydroxide<\/strong><\/p>\n<p>Acid chlorides react with NaOH to form the corresponding carboxylic acid which reacts with excess NaOH to form its sodium salt.<\/p>\n<p><a href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/01\/acl.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-10846\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/01\/acl-300x40.png\" alt=\"\" width=\"308\" height=\"41\" \/><\/a><\/p>\n<p>Mechanism of the reaction<\/p>\n<p><a href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/01\/acl1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-10845\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/01\/acl1-300x98.png\" alt=\"\" width=\"337\" height=\"110\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p><strong>(ii) Reaction with water<\/strong><\/p>\n<p>Acid chlorides also react with water by a similar mechanism to form the corresponding carboxylic acid.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.chemguide.co.uk\/organicprops\/acylchlorides\/acylclh2oeqn.gif\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong>(iii) Reaction with alcohols<\/strong><\/p>\n<p>Acid chlorides react with alcohols to form esters<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.chemguide.co.uk\/organicprops\/acylchlorides\/acylclethanoleqn.gif\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong>(iv) Reaction with phenol<\/strong><\/p>\n<p>Acid chlorides react with phenol to form phenyl esters.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.chemguide.co.uk\/organicprops\/acylchlorides\/acylclphenoleq1.gif\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong>(v) Reaction with NH<sub>3<\/sub><\/strong><\/p>\n<p>Acid chlorides react with ammonia to form amides<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.chemguide.co.uk\/organicprops\/acylchlorides\/acylclnh3eqn1.gif\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.chemguide.co.uk\/organicprops\/acylchlorides\/acylclnh3eqn2.gif\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong>(vi) Reaction with primary amines<\/strong><\/p>\n<p>Acidchlorides react with amines to form alkyl amines.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.chemguide.co.uk\/organicprops\/acylchlorides\/acylclch3nh2eqn1.gif\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3>Reactions of esters<\/h3>\n<p><strong>(i) Esters undergo hydrolysis with dilute acids to form the corresponding carboxylic acid and the alcohol.<\/strong><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.chemguide.co.uk\/organicprops\/esters\/hydretheth.gif\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong>(ii) Esters when reacted with aqueous NaOH form the sodium salt of corresponding carboxylic acid and the alcohol.<\/strong><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.chemguide.co.uk\/organicprops\/esters\/hydretheth2.gif\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong>(iii) With Grignard reagent<\/strong><\/p>\n<p>Esters react with Grignard reagents to give tertiary alcohols. Here, the ester is first converted to a ketone which reacts rapidly with the Grignard reagent again to give the product.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/chem.libretexts.org\/@api\/deki\/files\/13416\/2.jpg?revision=1\" alt=\"2.jpg\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong>(iv) Reduction by LiAlH<sub>4<\/sub><\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.chem.ucalgary.ca\/courses\/350\/Carey5th\/Ch20\/hydride+ester.gif\" alt=\"reduction of carboxylic acids using LiAlH4\" \/><img decoding=\"async\" src=\"https:\/\/chem.libretexts.org\/@api\/deki\/files\/13424\/2.jpg?revision=1\" alt=\"2.jpg\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3>Reactions of amides<\/h3>\n<p><strong>(i) With NaOH<\/strong><\/p>\n<p>When amides are warmed with an aqueous solution of NaOH, NH<sub>3<\/sub> is liberated and the sodium salt of the corresponding carboxylic acid is formed.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.chemguide.co.uk\/organicprops\/amides\/alkhydr.gif\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong>(ii) With LiAlH<sub>4<\/sub><\/strong><\/p>\n<p>Amides are reduced to the corresponding primary amine with LiAl<strong>H<sub>4<\/sub><\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/chem.libretexts.org\/@api\/deki\/files\/13342\/2.jpg?revision=1\" alt=\"2.jpg\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Reactions of acid chlorides (i) Reaction with sodium hydroxide Acid chlorides react with NaOH to form the corresponding carboxylic acid which reacts with excess NaOH to form its sodium salt. Mechanism of the reaction &nbsp; (ii) Reaction with water Acid chlorides also react with water by a similar mechanism to form the corresponding carboxylic acid. [&hellip;]<\/p>\n","protected":false},"author":842,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[14,1670],"tags":[],"class_list":["post-6112","post","type-post","status-publish","format-standard","hentry","category-chemistry","category-unit-10"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Acid derivatives - Learning &amp; Education Portal<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/astan.lk\/al_virtualclassroom\/the-characteristic-reactions-of-acid-derivatives\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Acid derivatives - Learning &amp; Education Portal\" \/>\n<meta property=\"og:description\" content=\"Reactions of acid chlorides (i) Reaction with sodium hydroxide Acid chlorides react with NaOH to form the corresponding carboxylic acid which reacts with excess NaOH to form its sodium salt. Mechanism of the reaction &nbsp; (ii) Reaction with water Acid chlorides also react with water by a similar mechanism to form the corresponding carboxylic acid. 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Mechanism of the reaction &nbsp; (ii) Reaction with water Acid chlorides also react with water by a similar mechanism to form the corresponding carboxylic acid. 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