+\documentclass[a4paper]{article}
+\usepackage[dvipsnames, table]{xcolor}
+\usepackage{amsmath}
+\usepackage{amssymb}
+\usepackage{chemfig}
+\usepackage[a4paper,margin=2cm]{geometry}
+\usepackage{mhchem}
+\usepackage{tabularx}
+\usepackage{tcolorbox}
+\usepackage{wrapfig}
+
+\title{Organic Reactions}
+\author{Andrew Lorimer}
+\date{}
+
+\newcolumntype{L}[1]{>{\hsize=#1\hsize\raggedright\arraybackslash}X}%
+\newcolumntype{R}[1]{>{\hsize=#1\hsize\raggedleft\arraybackslash}X}%
+\definecolor{important}{HTML}{fc9871}
+\newtcolorbox{warning}{colback=white!90!black, leftrule=3mm, colframe=important, coltext=important, fontupper=\sffamily\bfseries}
+
+\begin{document}
+
+\maketitle
+
+\subsubsection*{Alkanes}
+
+\begin{itemize}
+ \item Combustion (oxidation)
+ \item Substitution
+ \begin{itemize}
+ \item alcohol from haloalkane
+ \item UV catalyst
+ \end{itemize}
+\end{itemize}
+
+\subsubsection*{Alkenes}
+
+\begin{itemize}
+ \item Combustion (oxidation)
+ \item Addition
+ \item Addition polymerisation
+\end{itemize}
+
+\subsubsection*{Alcohols}
+
+\begin{itemize}
+ \item Oxidation / combustion:
+ \begin{itemize}
+ \item primary alcohol \ce{->[{[O]}]} aldehyde \ce{->[{[O]}]} carboxylic acid
+ \item secondary alcohol \ce{->[{[O]}]} ketone
+ \item Catalysts: \ce{H+/MnO4- (aq)} or \ce{H+/Cr2O7{2-} (aq)}
+ \end{itemize}
+ \item Esterification with carboxylic acids (condensation)
+\end{itemize}
+
+\subsubsection*{Carboxylic acids}
+
+\begin{itemize}
+ \item Acid/base reactions:
+ \begin{itemize}
+ \item With \ce{-NH2}: \ce{carboxylic acid + amine -> ammonium salt ->[heat][dehydration] amide + H2O}
+ \item With \ce{H2O}: \ce{RCOOH + H2O <=> RCOO- + H2O-}
+ \end{itemize}
+ \item Esterification with alcohols (condensation): \\
+ \-\hspace{1em}\ce{carboxylic acid + alcohol -> ester + H2O}
+\end{itemize}
+
+\subsubsection*{Esters}
+
+\begin{itemize}
+ \item Hydrolysis (reverse of esterification): \\
+ \-\hspace{1em}\ce{ester + water ->[catalyst] carboxylic acid + alcohol}
+ \item Polyesters
+\end{itemize}
+
+\end{document}