| Yang WB, Yang YY, Gu YF, Wang SH , Chang CC, Lin CH? |
------>authors3_c=None ------>paper_class1=1 ------>Impact_Factor=None ------>paper_class3=2 ------>paper_class2=1 ------>vol=67 ------>confirm_bywho=hsu0320 ------>insert_bywho=wbyang ------>Jurnal_Rank=None ------>authors4_c=None ------>comm_author= ------>patent_EDate=None ------>authors5_c=None ------>publish_day=None ------>paper_class2Letter=None ------>page2=3782 ------>medlineContent= ------>unit=000 ------>insert_date=20030324 ------>iam=1 ------>update_date= ------>author=??? ------>change_event=5 ------>ISSN=None ------>authors_c=None ------>score=500 ------>journal_name=J. Org. Chem. ------>paper_name=Stereochemistry in the Synthesis and Reaction of exo-Glycals ------>confirm_date=20030510 ------>tch_id=091118 ------>pmid=12027693 ------>page1=3773 ------>fullAbstract=Two general methods are explored for the stereoselective synthesis of exo-glycals. One method utilizes a nucleophilic addition of fully protected sugar lactones of gluco-, galacto-, and manno-types, followed by the subsequent dehydration, to give the desired exo-glycals with (Z)-configuration. The other method proceeds with selenylation of C-glycosides in a stereoselective manner. The subsequent selenoxide elimination also provides (Z)-exo-glycals. The prepared exo-glycal conjugated esters of either gluco- or manno-type react with allyl alcohol to give exclusively alpha-anomers. ------>tmu_sno=None ------>sno=6629 ------>authors2=None ------>authors3=None ------>authors4=None ------>authors5=None ------>authors6=None ------>authors6_c=None ------>authors=Yang WB, Yang YY, Gu YF, Wang SH , Chang CC, Lin CH? ------>delete_flag=0 ------>SCI_JNo=None ------>authors2_c=None ------>publish_area=None ------>updateTitle=Stereochemistry in the synthesis and reaction of exo-glycals. ------>language=2 ------>check_flag= ------>submit_date= ------>country=None ------>no= ------>patent_SDate=None ------>update_bywho= ------>publish_year=2002 ------>submit_flag= ------>publish_month=None |