作者:Margaret Brimble、Caryn Burgess
DOI:10.1055/s-2007-965911
日期:2007.3
The synthesis of a series of aryl 5,5-spiroketals containing a 1,1′-spirobi(3H,3′H)isobenzofuran ring system is reported. The key step involves addition of an aryllithium derived from a protected bromobenzyl alcohol to a phthalide; this is followed by deprotection of the benzyl alcohol and acid-catalysed cyclisation.
报道了一系列包含1,1′-螺二(3H,3′H)异苯并呋喃环系的芳基5,5-螺酮的合成。关键步骤是将衍生自保护的溴苄醇的芳基锂试剂加成到邻苯二甲酸内酯上;随后进行苄醇的去保护和酸催化的环化反应。