A general synthetic route to 3-alkyl-2-hydroxy-5-methoxy- IP-benzoquinones and the total synthesis of 5-O-methylembelin is reported based upon ring expansion of substituted cyclobutenes. (C) 2001 Elsevier Science Ltd. All rights reserved.
A general synthetic route to 3-alkyl-2-hydroxy-5-methoxy- IP-benzoquinones and the total synthesis of 5-O-methylembelin is reported based upon ring expansion of substituted cyclobutenes. (C) 2001 Elsevier Science Ltd. All rights reserved.