First total synthesis of (+)-apotrisporin E and (+)-apotrientriols A–B: a cyclization approach to apocarotenoids
摘要:
首次完成了天然类胡萝卜素 (+)-apotrisporin E (1) 和 (+)-apotrientriols A 和 B (2â3) 的全合成。其结构、相对立体化学和绝对构型的确定均已得到证实。这是一种快速、简便地获得该天然产物家族的方法,其关键步骤是非对映选择性环化和 HWE 烯化以连接二烯侧链。这项工作还为合成其他类胡萝卜素(如三孢子醇和三孢子酸)打开了大门。
First total synthesis of (+)-apotrisporin E and (+)-apotrientriols A–B: a cyclization approach to apocarotenoids
摘要:
首次完成了天然类胡萝卜素 (+)-apotrisporin E (1) 和 (+)-apotrientriols A 和 B (2â3) 的全合成。其结构、相对立体化学和绝对构型的确定均已得到证实。这是一种快速、简便地获得该天然产物家族的方法,其关键步骤是非对映选择性环化和 HWE 烯化以连接二烯侧链。这项工作还为合成其他类胡萝卜素(如三孢子醇和三孢子酸)打开了大门。
FeCl3 and ZrCl4 regiochemically controlled biomimetic-like cyclizations of simple isoprenoid epoxyolefins
作者:Giovanni Vidari、Stephen Beszant、Jamal El Merabet、Marcella Bovolenta、Giuseppe Zanoni
DOI:10.1016/s0040-4039(02)00394-5
日期:2002.4
FeCl3.6H(2)O and ZrCl4 efficiently promote the biomimetic-like cyclization of geraniol and farnesol epoxides, fielding the corresponding endo mono- and bicyclic oleflins. respectively, in reasonable fields and with complete positional control. (C) 2002 Elsevier Science Ltd. All rights reserved.
First total synthesis of (+)-apotrisporin E and (+)-apotrientriols A–B: a cyclization approach to apocarotenoids
作者:José A. González-Delgado、Jesús F. Arteaga、M. Mar Herrador、Alejandro F. Barrero
DOI:10.1039/c3ob41226a
日期:——
The first total synthesis of the natural apocarotenoids (+)-apotrisporin E (1) and (+)-apotrientriols A and B (2â3) has been accomplished. The structure, relative stereochemistry and the assignation of the absolute configuration have been confirmed. This is a fast and easy access to this family of natural products whose key steps are a diastereoselective cyclization and a HWE olefination to attach the dienic side chain. This work also opens the door to the synthesis of other apocarotenoids such as trisporols and trisporic acids.
首次完成了天然类胡萝卜素 (+)-apotrisporin E (1) 和 (+)-apotrientriols A 和 B (2â3) 的全合成。其结构、相对立体化学和绝对构型的确定均已得到证实。这是一种快速、简便地获得该天然产物家族的方法,其关键步骤是非对映选择性环化和 HWE 烯化以连接二烯侧链。这项工作还为合成其他类胡萝卜素(如三孢子醇和三孢子酸)打开了大门。