<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chavan, Vikas S.</style></author><author><style face="normal" font="default" size="100%">Sahoo, Shubhranshu Shekhar</style></author><author><style face="normal" font="default" size="100%">Gonnade, Rajesh G.</style></author><author><style face="normal" font="default" size="100%">Kontham, Ravindar</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Organocatalytic enantioselective desymmetrization cascade for the construction of functionalized oxabicyclo[3.3.1]nonanes</style></title><secondary-title><style face="normal" font="default" size="100%">Organic Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2026</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JUL </style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">28</style></volume><pages><style face="normal" font="default" size="100%">8271-8277</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;
	The construction of stereochemically enriched molecules from readily accessible meso and prochiral precursors via catalytic enantioselective desymmetrization represents a powerful synthetic strategy. Herein, we report an efficient enantioselective Michael/oxa-Michael cascade reaction between C4-functionalized meso-2,5-cyclohexadienones and beta-ketoesters, catalyzed by a Takemoto chiral squaramide. This protocol enables the efficient construction of densely functionalized oxabicyclo[3.3.1]nonane frameworks bearing two or three stereogenic centers, with good to excellent diastereo- and enantioselectivities. Furthermore, the method is amenable to scale-up and offers opportunities for late-stage functionalization.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">26</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;
	Foreign&lt;/p&gt;
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	4.7&lt;/p&gt;
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