{"id":187153,"date":"2025-02-01T08:57:44","date_gmt":"2025-02-01T08:57:44","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=187153"},"modified":"2025-02-01T08:57:46","modified_gmt":"2025-02-01T08:57:46","slug":"identify-the-expected-major-products-for-the-following-reaction-2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/02\/01\/identify-the-expected-major-products-for-the-following-reaction-2\/","title":{"rendered":"Identify the expected major product(s) for the following reaction"},"content":{"rendered":"\n<p>Identify the expected major product(s) for the following reaction.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>MCPBA<\/li>\n\n\n\n<li>H*, H20 ?? ? ? ?? H2CH2CHCH2CH3 ?? ?? HHH H3CH2C CH2CH3<\/li>\n<\/ol>\n\n\n\n<p>A. 1 III II ??<\/p>\n\n\n\n<p>B. I and III<\/p>\n\n\n\n<p>C. I, II and III<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>The reaction involves <strong>meta-chloroperoxybenzoic acid (MCPBA)<\/strong> followed by <strong>acidic hydrolysis (H\u207a, H\u2082O)<\/strong>. This suggests an <strong>epoxidation<\/strong> reaction followed by <strong>acid-catalyzed ring opening<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 1: Epoxidation Using MCPBA<\/strong><\/h3>\n\n\n\n<p>MCPBA is a strong electrophilic oxidizing agent that selectively reacts with <strong>alkenes<\/strong> to form <strong>epoxides<\/strong>. The given reactant contains a <strong>double bond<\/strong>, which will be converted into an epoxide.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 2: Acid-Catalyzed Epoxide Opening<\/strong><\/h3>\n\n\n\n<p>In the presence of <strong>H\u207a and H\u2082O<\/strong>, the epoxide undergoes <strong>acid-catalyzed hydrolysis<\/strong>, leading to the formation of a <strong>vicinal diol<\/strong>. The mechanism involves:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Protonation of the epoxide<\/strong> by H\u207a, making it more susceptible to nucleophilic attack.<\/li>\n\n\n\n<li><strong>Nucleophilic attack by water<\/strong>, leading to anti-addition and forming a <strong>trans-diol<\/strong>.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Possible Products:<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Product I<\/strong> \u2013 A trans-1,2-diol resulting from anti-addition across the double bond.<\/li>\n\n\n\n<li><strong>Product II<\/strong> \u2013 Another stereoisomeric trans-diol if there are multiple possibilities based on the starting structure.<\/li>\n\n\n\n<li><strong>Product III<\/strong> \u2013 Depending on the reaction conditions, rearrangement may yield additional stereoisomers or regioisomers.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Correct Answer:<\/strong><\/h3>\n\n\n\n<p>The major expected products are <strong>I, II, and III<\/strong>, meaning the correct choice is:<br><strong>C. I, II, and III.<\/strong><\/p>\n\n\n\n<p>This reaction is significant in organic synthesis because epoxide formation and subsequent hydrolysis are key steps in the <strong>synthesis of 1,2-diols<\/strong>, which are valuable intermediates in pharmaceuticals and polymers.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Identify the expected major product(s) for the following reaction. A. 1 III II ?? B. I and III C. I, II and III The Correct Answer and Explanation is : The reaction involves meta-chloroperoxybenzoic acid (MCPBA) followed by acidic hydrolysis (H\u207a, H\u2082O). This suggests an epoxidation reaction followed by acid-catalyzed ring opening. Step 1: Epoxidation [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-187153","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/187153","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=187153"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/187153\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=187153"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=187153"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=187153"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}