{"id":215191,"date":"2025-05-16T12:47:14","date_gmt":"2025-05-16T12:47:14","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=215191"},"modified":"2025-05-16T12:47:16","modified_gmt":"2025-05-16T12:47:16","slug":"draw-the-structure-of-an-eight-carbon-alkene-that-would-yield-the-following-compound-and-no-others-after-treatment-with-ozone-followed-by-dimethyl-sulfide-14","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/16\/draw-the-structure-of-an-eight-carbon-alkene-that-would-yield-the-following-compound-and-no-others-after-treatment-with-ozone-followed-by-dimethyl-sulfide-14\/","title":{"rendered":"Draw the structure of an eight-carbon alkene that would yield the following compound (and no others) after treatment with ozone followed by dimethyl sulfide."},"content":{"rendered":"\n<p>Draw the structure of an eight-carbon alkene that would yield the following compound (and no others) after treatment with ozone followed by dimethyl sulfide.<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>To determine the structure of an <strong>eight-carbon alkene<\/strong> that gives a specific product <strong>after ozonolysis followed by treatment with dimethyl sulfide (DMS)<\/strong>, we first need to understand what happens during <strong>ozonolysis<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step-by-step Process:<\/strong><\/h3>\n\n\n\n<p><strong>1. Ozonolysis Reaction:<\/strong><\/p>\n\n\n\n<p>Ozonolysis is a reaction where an alkene (C=C) is cleaved by ozone (O\u2083), breaking the double bond and producing <strong>two carbonyl compounds<\/strong> \u2014 either aldehydes or ketones. When ozonolysis is followed by <strong>reductive work-up<\/strong> (e.g., using DMS), the products are <strong>aldehydes and\/or ketones<\/strong>, not carboxylic acids.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Example Product Analysis:<\/strong><\/h3>\n\n\n\n<p>Let&#8217;s assume the <strong>product obtained<\/strong> is:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Two molecules of butanal (CH\u2083CH\u2082CH\u2082CHO)<\/strong><\/li>\n<\/ul>\n\n\n\n<p>This means the ozonolysis produced <strong>only one type of aldehyde<\/strong>, and two identical molecules of it. That suggests the <strong>alkene is symmetrical<\/strong>, and each half contains 4 carbon atoms.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 2: Reverse Ozonolysis to Determine the Alkene<\/strong><\/h3>\n\n\n\n<p>To find the original alkene, we <strong>reconnect<\/strong> the carbonyl carbons (from the aldehydes) by forming a <strong>double bond<\/strong> between them.<\/p>\n\n\n\n<p>If ozonolysis of an alkene gives <strong>2 molecules of butanal<\/strong>, we must have had an alkene with this structure:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>CH\u2083CH\u2082CH=CHCH\u2082CH\u2082CH\u2083<\/p>\n<\/blockquote>\n\n\n\n<p>But this has 7 carbons. Instead, to form <strong>butanal (CH\u2083CH\u2082CH\u2082CHO)<\/strong>, we need a double bond between <strong>C4 and C5<\/strong> of an eight-carbon chain.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 <strong>Correct Alkene:<\/strong><\/h3>\n\n\n\n<p><strong>3-octene<\/strong> (specifically <strong>cis- or trans-3-octene<\/strong>):<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>CH\u2083CH\u2082CH=CHCH\u2082CH\u2082CH\u2082CH\u2083<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p>This alkene has 8 carbon atoms, with a double bond between <strong>C3 and C4<\/strong>. When ozonolysis occurs:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The double bond is cleaved between <strong>C3 and C4<\/strong><\/li>\n\n\n\n<li>Each carbon becomes part of a new carbonyl group<\/li>\n\n\n\n<li>This produces <strong>2 molecules of butanal (CH\u2083CH\u2082CH\u2082CHO)<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd2c <strong>Summary:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Alkene<\/strong>: <strong>3-octene<\/strong><\/li>\n\n\n\n<li><strong>Reaction<\/strong>: Ozonolysis followed by DMS<\/li>\n\n\n\n<li><strong>Product<\/strong>: 2 molecules of <strong>butanal<\/strong><\/li>\n\n\n\n<li><strong>Why 3-octene?<\/strong> It is symmetrical around the double bond and upon cleavage yields only one product.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 <strong>Structure of 3-octene:<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>CH3\u2013CH2\u2013CH=CH\u2013CH2\u2013CH2\u2013CH2\u2013CH3\n<\/code><\/pre>\n\n\n\n<p>This is the eight-carbon alkene that would produce <strong>only butanal<\/strong> after ozonolysis and reduction.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Draw the structure of an eight-carbon alkene that would yield the following compound (and no others) after treatment with ozone followed by dimethyl sulfide. The Correct Answer and Explanation is: To determine the structure of an eight-carbon alkene that gives a specific product after ozonolysis followed by treatment with dimethyl sulfide (DMS), we first need [&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-215191","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/215191","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=215191"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/215191\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=215191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=215191"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=215191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}