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- [23] ENANTIOSELECTIVE FUNCTIONALIZATION OF PROCHIRAL DIOLS VIA CHIRAL SPIROKETALS - PREPARATION OF OPTICALLY PURE 2-SUBSTITUTED 1,3-PROPANEDIOL DERIVATIVES AND ASYMMETRIC-SYNTHESIS OF CHROMAN RING AND SIDE-CHAIN OF ALPHA-TOCOPHEROL JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1987, 109 (02) : 527 - 532