(–)-5-[(4r,5r)-5-(benzyloxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-4,7-dihydro-1,3-dioxepine(-)5 -[(4 r,5 r)5 -(benzyloxymethyl)2,2-dimethyl-1,3-dioxolan-4-yl)2,2-dimethyl-4,7-dihydro-1 3-dioxepine.pdfVIP

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(–)-5-[(4r,5r)-5-(benzyloxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-4,7-dihydro-1,3-dioxepine(-)5 -[(4 r,5 r)5 -(benzyloxymethyl)2,2-dimethyl-1,3-dioxolan-4-yl)2,2-dimethyl-4,7-dihydro-1 3-dioxepine.pdf

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(–)-5-[(4r,5r)-5-(benzyloxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-4,7-dihydro-1,3-dioxepine(-)5 -[(4 r,5 r)5 -(benzyloxymethyl)2,2-dimethyl-1,3-dioxolan-4-yl)2,2-dimethyl-4,7-dihydro-1 3-dioxepine

Molbank 2010, M680; doi: 10.3390/M680 OPEN ACCESS molbank ISSN 1422-8599 /journal/molbank Short Note ()-5-[(4R,5R)-5-(Benzyloxymethyl)-2,2-dimethyl-1,3-dioxolan-4- yl]-2,2-dimethyl-4,7-dihydro-1,3-dioxepine Carlos R. Carreras 1, Celina E. García 2, Víctor S. Martín 2, Carlos E. Tonn 1, David Díaz Díaz 3,4,* and Juan Pedro Ceñal 1,* 1 INTEQUI-CONICET-Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, 5700 San Luis, Argentina 2 Instituto Universitario de Bio-Orgánica “Antonio González”, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez, 2, 38206 La Laguna, Tenerife, Spain 3 Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, 93040 Regensburg, Germany 4 ICMA, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain * Authors to whom correspondence should be addressed; E-Mails: jcenal@.ar (J.P.C.); David.Diaz@chemie.uni-regensburg.de (D.D.D.). Received: 11 March 2010 / Accepted: 30 April 2010 / Published: 30 April 2010 Abstract: The synthesis of ()-5-[(4R,5R)-5-(benzyloxymethyl)-2,2-dimethyl-1,3- dioxolan-4-yl]-2,2-dimethyl-4,7-dihydro-1,3-dioxepine is reported. Product character- ization was carried out by IR, 1H NMR, 13C NMR, MS, elemental analysis and optical rotation. Keywords: polyoxygenated compounds; acetonide; allylic diol Acetals are frequently used as protecting groups for carbonyl groups in organic synthesis mainly due to their stability towards hydrolysis by bases [ 1]. As well as be