Crystal studies of some organic natural products and inorganic compounds of structural interest

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ABSTRACT

The crystal structure of the bromo derivative of a cyclic diterpene has been determined. The c r y s t a l s are of orthorhombic symmetry with a = 9.00f!, b = 31.46R, c =

7.318.

The s t r u c t u r e was solved b y the normal heavy atom procedure, and refined by

.

least-squares t o a residual of R = 0.064.

The molecule i s shown t o be phyll ocl adan-15-yl bromoacetate, r a t h e r than t o be a neo-atisirane derivative, as had been

expected.

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