Processes for preparing racemic and optically pure 3,6-dihydro-2H-pyrans of formulae H, I, N and O are described. These compounds may be further transformed into compounds of formulae J, K, L, M, P, Q, S, T, U, V, Y and Z with potential pharmaceutical, pharmaceutical excipient, cosmeceutical, agrochemical and industrial applications.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a 35 USC 371 National Stage application of PCT Application No. US2004/001344 filed Jan. 16, 2004; which claims the benefit under 35 USC 119(e) to U.S. application Ser. No. 60/440,982 filed Jan. 17, 2003, now abandoned. The disclosure of each of the prior applications is considered part of and is incorporated by reference in the disclosure of this application.
